Karl Lashley trained rats to solve a maze and then removed pieces of their cortexes. He observed that storage of their maze memories was not restricted to specific regions of the cortex.
What is a cortex?
The outer layer of any organ or part, such as the kidney's outer part (renal cortex) or the grey matter that covers the cerebrum (cerebral cortex) in the brain.
Karl Lashley is credited with discovering that the highest kind of memory impairment results from the removal of a larger portion of the cortex in his efforts to explore and uncover the engram. He was the one who was able to recognise the frontal lobe cortex as an essential location for memory.
Therefore, Karl Lashley's investigation into how their maze memories were stored revealed that it was neither hampered nor limited to specific areas of the cortex.
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Which of the following describes an environmental problem that can result from the combustion of fossil fuels to generate electricity?Carbon dioxide is a product of the combustion fossil fuels, and it can lead to global climate change when released into the atmosphere.
Other environmental problems resulting from the combustion of fossil fuels to generate electricity include air pollution, acid rain, and water contamination.
What do you mean by fossil fuels?
Fossil fuels are fuels formed by natural processes such as anaerobic decomposition of buried dead organisms. They contain high percentages of carbon and include petroleum, coal, and natural gas. Fossil fuels are non-renewable resources that are used to generate electricity and are the main source of fuel for transportation and industrial activities.
Environmental problems resulting from the combustion of fossil fuels to generate electricity include air pollution, water pollution, and climate change. Air pollution is caused by the release of pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter. These pollutants can cause respiratory and cardiovascular diseases, as well as acid rain. Water pollution is caused by the release of pollutants such as mercury, lead, and arsenic into surface water, which can contaminate drinking water and harm aquatic life. Climate change is caused by the release of greenhouse gases, such as carbon dioxide, into the atmosphere, which can lead to an increase in average global temperature and changes in weather patterns.
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Match the correct term to the examples to apply your understanding of the three different types of epidemics. Point-source epidemic The potato salad at the company picnic was left out too long and later that night, 36 people experienced vomiting and diarrhea. Common-source epidemic The cantaloupes from a farm in Colorado sickened people with listeriosis over the course of several months. Propagated epidemic HIV has spread across the U.S. since the first diagnosis in the 1980s.
Examples of epidemics include smallpox, measles, polio, yellow fever, and smallpox. It's not necessary for an epidemic disease to be communicable. Other epidemics include West Nile fever and the sharp rise in obesity rates.
Is malaria on the rise?Malaria epidemics happen all across the world, and the aetiologies behind them are as varied as the endemic regions' climatic conditions, terrain, and vector ecology.
Cholera is endemic, not epidemic.EPIDEMIOLOGY. Cholera may cause catastrophic epidemics and is endemic to around 50 countries, mostly in South and Southeast Asia and Africa. However, the majority of cases go unreported.
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mendel was able to discover the principles of heredity because of the following reasons, except: group of answer choices he used traits that only had two phenotypes he communicated with charles darwin about his hypotheses he used the pea plant which allowed fast generation time he used mathematics to analyze his results
Based on theories first put out by Gregor Mendel around 1866, we now understand how inherited qualities are transmitted down through generations. Mendel studied pea, but his theories can be used to understand traits in both plants and animals. They can help us understand how traits like eye color, hair color, and even the capacity to roll our tongues come from our parents.
What has made Mendel famous?He concluded that genes are inherited from each parent as separate, paired units. Mendel observed how parental genes separated and if they showed up either dominant or recessive qualities in the children.
What were Mendel's three laws?Variations in our genes can be used to explain these straightforward variations in the phenotypes, or the trait manifested in an organism. The Law on Dominance and Uniformity, or Law of Segregation, as well as the Regulation of Independent Assortment are some of Mendel's laws.
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correctly classify the given food items as either a fruit or a vegetable. if you need help, look at the hint available by clicking view available. drag the foods into the appropriate bins. fruits should be placed in the left bin. vegetables should be placed in the right bin. view available hint(s)
Fruit and vegetable are classified as:
Carrot: Vegetable
Strawberry: Fruit
Tomato: Vegetable
What is Fruit?Fruit is a type of edible plant material derived from the fleshy ripened ovaries of flowers. It is usually sweet and juicey, although some fruits have a sour or tart flavor.
Fruit is a vital source of nutrition, providing essential vitamins and minerals, dietary fiber, and antioxidants. Common types of fruit include apples, oranges, pears, grapes, strawberries, raspberries, blueberries, bananas, watermelons, and cantaloupes.
Fruit is typically eaten raw, though some people choose to cook or process it. It is a popular snack and often served as part of a meal or dessert. Fruit can also be processed into juice, jam, or preserves, and used as an ingredient in sauces, dressings, and other dishes.
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SB6.b
Where do new adaptations come from? There is more than one correct answer - choose
all that apply!!
A. Mutations in the DNA passed on to an organism
B. Nature will give an organism the adaptations it needs to survive
C. An organism can choose to grow an adaptation
D. New combinations of genes from the parents
New adaptations result from changes in the organism's DNA over time.
Evolution is the cause of adaptation. Evolution causes a species to change over a long period of time. Usually, mutations or unintentional gene alterations result in adaptations. Depending on the mutation, a plant or animal may be able to live longer than other members of its species.
Where do fresh adaptations come from?New variation arises through mutations. Natural selection does not create new features; it only modifies the level of variation already existing in the population. The recurrent two-step interaction of these processes leads to the evolution of novel adaptive characteristics.
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A deep sense of well-being results when our need for relatedness is satisfied in balance with our psychological need for:
A deep sense of well-being results when our need for relatedness is satisfied in balance with our psychological needs for competence and: autonomy.
The ability to make an educated, uncompelled decision is referred to as autonomy in developmental psychology and moral, political, and bioethical philosophy. Organizations or institutions that are autonomous are independent or self-governing. From a human resources standpoint, autonomy may be described as a (relatively high) amount of discretion given to a person in their job. In these circumstances, autonomy has a history of raising overall work satisfaction. Self-actualized people are believed to function independently of expectations from others. Respect for a patient's personal autonomy is one of several essential ethical principles in medicine, according to the medical community.
complete question:A deep sense of well-being results when our need for relatedness is satisfied in balance with our psychological needs for competence and:
a) homeostasis. b) autonomy. c) affiliation. d) narcissism.
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explain how the change of a single amino acid in hemoglobin leads to the aggregation of hemoglobin into long fibers. (review figures 5.14, 5.18, and 5.19)
The non-polar nature of the specific amino acid is what causes haemoglobin to change amino acids and aggregate into long fibres. Valine is used instead of glutamine in this scenario, which changes how the haemoglobin protein functions.
The sixth amino acid in regular haemoglobin is the acidic glutamic acid (Glu) (which has a negative charge on its side chain). Glu is substituted with valine (Val), a nonpolar amino acid that is extremely unlike Glu, in sickle-cell haemoglobin. The shape and thus the function of a protein are ultimately determined by its primary structure, which is its amino acid sequence. The haemoglobin molecules can combine and create lengthy fibres when Val is changed to Glu, which causes the protein to function improperly and the red blood cell to deform.
Due to a nucleotide error that results in the synthesis of aberrant beta-chains in haemoglobin S, the single amino acid substitution of valine for glutamic acid in the beta-chain causes sickle cell anaemia.
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fill in the blank. pea plant seed coloration can be white or gray. in this example___would be the trait and___would be a phenotype. group of answer choices white - pea plant color pea plant color- grey or white pea plant color- grey white - grey
In this example pea plant color would be the trait and grey or white would be a phenotype.
What is phenotype?
Phenotype is the physical characteristics of an organism that are determined by its genetic makeup and influenced by environmental factors. It includes observable traits such as physical appearance, development, physiology, and behavior. It can also include biochemical properties such as enzyme activity, gene expression, and gene regulation. It is the result of the interaction between an organism's genotype and its environment.
Therefore, In this example pea plant color would be the trait and grey or white would be a phenotype.
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The original bacteria kingdom was divided into two separate kingdoms based on analysis of their RNA sequences
rRNA gene sequence Two new kingdoms called Eubacteria and Archeabacteria were proposed by Woese and his colleagues as a division of the original bacteria kingdom.
what are bacteria kingdom?The kingdom of bacteria is made up of small, single-celled organisms that can exist alone or in colonies. Previously known as the Monera Kingdom, bacteria are single-celled prokaryotic creatures. Eubacteria and archaea are two of the domains that make up bacteria.
what is Eubacteria?Prokaryotic organisms, or those without a membrane-bound nucleus, are what make up eubacteria. They are primarily unicellular and have single cellular DNA chromosomes. If they are motile, they typically have flagella and have peptidoglycan in their cell walls.
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Researchers grew seedlings of corn, Zea mays, in loose and compact sand. The researchers measured the amount of time required for the cells in the growing root tips of the seedlings to double in number. The mean cell doubling times for the two groups of seedlings are shown in Figure 1.Figure 1. Mean cell doubling times for the growing root tips of Zea mays seedlings planted in loose or compact sand
Based on the sample means, which of the following conclusions about the cells in the growing root tips of Zea mays seedlings is best supported by the results of the experiment?
A. The cells of the root tips grow to larger sizes when the seedlings are planted in compact sand than when the seedlings are planted in loose sand.
B. The average rate of mitotic cell division is greater for the root tips growing in loose sand than for the root tips growing in compact sand.
C. The average cell cycle time is greater for the root tips growing in compact sand than for the root tips growing in loose sand.
D. More cells are produced per unit of time in the root tips growing in compact sand than in the root tips growing in loose sand.
Based on the sample, The average rate of mitotic cell division is greater for the root tips growing in loose sand than for the root tips growing in compact sand.
What is mitotic cell devision?
Mitotic cell division is the process by which a single cell divides into two identical daughter cells. This process occurs in all living organisms, and is essential for growth and development. During mitosis, the genetic material within the cell is equally divided between the two daughter cells. This ensures that each daughter cell contains the same genetic material as the original cell.
Therefore, Option B is correct.
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the science of nutrition includes the study of factors that affect food availability and choices, the identification of chemical components of food, the action of food chemicals on the body, and the effects of food on health and disease risk. classify each of the factors under the area of nutrition science in which it would be studied.
The study that food, nutrients, and some other food substances as well as how they are consumed and biochemically processed, how they relate to health & disease, and how to use this knowledge to inform programs and policies is known as nutritional sciences.
How should we define nutrition?Eating a balanced, healthy diet is important for nutrition. You can get the nutrition and energy you need from food and beverages. You might find it simpler to choose healthier foods if you understand these nutrition concepts. More definitions can be found at fitness, general health, minerals, nutrition, and vitamins.
What makes nutrition important?A nutritious diet supports normal growth, development, and aging, aids in maintaining a healthy body weight, lowers the chance of developing chronic diseases, and promotes healthy maternal health, all of which contribute to overall health and wellbeing.
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How did the arrival of the arabs in the northern africa influence the development of africa?
Numerous technological advances were brought by the Muslims, including those in mathematics (numerals and algebra), astronomy, medicine, and geography. The Black Death plague struck northern Africa in the 1300s, much like it did in medieval Europe.
What impact did Arabian culture have on Africa?Arab traders and travelers, followed by African clerics, propagated the faith between the eighth and ninth centuries along the eastern coast of Africa and to western and central Sudan (literally, "Land of Black People"), promoting the growth of urban areas.
What damage were the Arabs to North Africa?The Arabs invaded North Africa three times in the seventh century, bringing with them a new religion as well as a language and way of life that were foreign to the indigenous Berber tribes of the Sahara and the Mediterranean hinterland.
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using the information from this activity explain why the equation is a vastly oversimplified representation of the actual process.
It's very complex many reactions that are separated specially in temporarily. The equation implies one step to come bind water and CO2 to make glucose and oxygen
what is photosynthesis?
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in form of sugar.
Photosynthesis is critical for existence of the vast majority of life on Earth. It is way in which virtually all energy in the biosphere becomes available to living things.
British physician and scientist who is best known for his discovery of the process of photosynthesis, by which green plants in sunlight absorb carbon dioxide and release oxygen
There is suggestive evidence that photosynthetic organisms were present approximately 3.2 to 3.5 billion years ago, in form of stromatolites, layered structures similar to forms that are produced by some modern cyanobacteria, as well as numerous microfossils that have been interpreted as arising from phototrophs
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Methods of detecting and identifying intestinal parasites include all of the following except:
A. Molecular methods
B. Wet mounts
C. Permanent stained smears
D. Thin and thin Giemsa smear
The approach used most frequently to identify intestinal parasites from fecal samples is direct wet mount examination. The correct option to this question is B.
In Africa, namely in Ethiopia, the direct wet mount technique is frequently used to diagnose both protozoal and helminthic illnesses.
To view moving organisms, scientists use a technique called the Wet Mount. Material taken from a female patient's vaginal wall is frequently examined using this method.
Wet mounts do have several benefits over slides that are fixedly mounted, including: There is no need for specimen fixation, dehydration, or staining during rapid preparation (but possible, if required). Wet mounts are therefore the type of mounts that trainees learn to build first.
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show a dihybrid cross for fruit flies. wwrr x wwrr. be careful when counting the number for each phenotype, it is easy to make a mistake. write the phenotype ratios below.
A dihybrid cross is a cross between individuals that are heterozygous for two different traits. In this example, a dihybrid cross for fruit flies with the genotype wwrr (wild-type red-eyed) x wwrr (wild-type red-eyed) would look like this:
WWrr x WWrr
| |
WwRr WwRr
| |
WwrR WwrR
| |
Wwrr Wwrr
The phenotype ratio for this dihybrid cross would be 9 wild-type red-eyed : 3 wild-type white-eyed : 3 red-eyed mutant : 1 white-eyed mutant.This ratio can be determined by using the Punnett square, which is a tool used to predict the outcomes of genetic crosses by showing all possible combinations of alleles from each parent. In this case, the Punnett square shows that there are four possible combinations of alleles for each trait: Ww for the wild-type allele and w for the mutant allele for eye color, and Rr for the red allele and rr for the white allele for eye color. Each combination of alleles has a 25% chance of occurring, resulting in the above phenotype ratio.In summary, the dihybrid cross between fruit flies with the genotype wwrr (wild-type red-eyed) x wwrr (wild-type red-eyed) results in the phenotype ratio of 9 wild-type red-eyed : 3 wild-type white-eyed : 3 red-eyed mutant : 1 white-eyed mutant.
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a gardener is trying to make pink flowers by mixing true breeding white flowers and true breeding red flowers. under normal conditions, red is dominant to white. draw a punnett square for the cross and list the phenotypic and genotypic ratios in case
The offspring of a true breeding red flower plant and a true breeding white flower plant are all pink flowering plants. Incomplete Dominance is an exception that accounts for this.
When both alleles express equally but neither is dominant on the other, this is known as incomplete dominance. This results in a new phenotype that is intermediate between the two alleles.
To help you see clearly, I've drawn a cross here:
RR X rr
White Flower Red Flower
Generation 1 Rr
Pink blossom
The phenotype here is 1:2:1, totally different from the normal dominant trait which shows a phenotype of 3:1
What is phenotype?
The set of qualities or characteristics that can be observed in an organism are known as its phenotype in genetics. The phrase refers to an organism's morphology (physical shape and structure), developmental processes, biochemical and physiological characteristics, behaviour, and the outcomes of behaviour. The genotype—the expression of an organism's genetic code—and the impact of environmental circumstances both contribute to its phenotype. Both elements might interact, which would further impact the phenotypic.
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explain why proposing to teach creationism or intelligent
design in high school science classes is legally problematic in this country, and what some of the results of these
attempts have been. Please help !!
ID proponents contend that teaching ID alongside evolution would give pupils a more comprehensive view of science. They assert that evolution is simply a theory with several gaps (such as missing links) that can only be explained by intelligent design.
Why the theory of evolution should not be taught in schools?Since evolution continues to influence and sway students' views and perspectives on modern science, it should not be taught in public schools even when it is freely acknowledged as a theory.There is still another significant role for evolution education. The teaching of evolution provides educators with a fantastic chance to illuminate the nature of science and to distinguish science from other spheres of human endeavor and comprehension since some individuals perceive evolution as at odds with generally held beliefs.As an alternative to evolution or in addition to the theory, creationism is being taught in schools in a number of U.S. states. Right now, teaching evolution is not totally prohibited in any state. The following list of states includes a few instances where evolution has sparked disagreement and discussion.To Learn more About intelligent design refer To:
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The Sun is the ultimate source of energy for all life on Earth. How does energy from the Sun get transferred to a top consumer such as a Florida panther? A. The Sun's energy is transferred to plants, then to animals that eat plants, then to the panther. B. The panther is able to absorb the energy directly from the Sun. C. Energy from the Sun is absorbed by plants and is then transferred to the panther when it eats them. D. The Sun's energy is absorbed by decomposers and is then transferred to the panther when it eats them.
The correct answer is Option A. The Sun's energy is transferred to plants then to animals that eat those plants and then to that panther.
The Sun's energy is absorbed by the plants through photosynthesis. Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
Then the plant-eating animals eat these plants. We can call this the first step of the food chain. Energy stored in these plants gets transferred to these animals. The animals that eat plants as their source of food are called herbivores.
These herbivore animals are the source of food for carnivore animals like Florida Panthers. The energy stores in these animals are transferred to a new places. This can be said to be the second stage of the food chain. And this continues.
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14 43. The diagram below shows the successive positions of a single cilium on the body surface of a paramecium -6 (a) Indicate on the diagram the direction of movement of the paramecium as Il progresses forward. (01 mark) (b) Which of these positions represent the (02 mark) (1) Effective stroke... (i) Recovery stroke.... (c) Describe how exactly effective stroke is achieved in cillary movement. (03 marks) (d) Describe four importances of ciliary movements in animals. (04 marks)
A ciliary beat cycle consists of an effective stroke during which the expanded cilium moves in an oar-like motion to one side, and a recovery stroke during which the cilium moves back by propagating a bend from base to tip.
Explain about the Cillary movement?It is known as ciliary movement when cilia move rhythmically and cause fluid or cell movement. In eukaryotic cells, cilia are a type of bacteria. For instance, the movement of the cilia in Paramoecium helps the cell move around and carry food inside of it.
Both movement and sensory activities are significant tasks carried out by cilia. They are vital for the cell cycle, replication, and the growth of both people and animals. To keep the inside pathways clear of mucus and other unwanted objects, many cilia move in a regular pattern.
The Edinger-Westphal nucleus, a dorsal-rostral region of the oculomotor nucleus, regulates both the iris sphincter and the ciliary muscle.
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How is the tropic rainforest different than the savannas in terms of precipitation?
Answer:
the savannas receive very little rainfall and the tropical rainforest has a rainy and a dry season
Explanation:
40-60 inches
Total annual rainfall is typically 1000-1500 mm (40-60 inches). In tropical savanna climates, the dry season can become severe, with some months having no rainfall, and often drought conditions prevail during the course of the year
Glycolysis
A. does not require O2 to generate energy.
B. requires O2 to generate energy.
C. is inhibited by O2.
D. rate is increased in the presence of O2.
A. does not require O2 to generate energy. The process by which glucose gets broken down to provide energy is known as glycolysis.
What is glycolysis' primary purpose?The initial process in breaking down glucose to release energy for the cell's metabolism is called glycolysis.An energy-consuming phase and an energy-releasing phase make up glycolysis.
Where does glycolysis take place, and what is it?Fundamentals.One 6 carbon glucose molecule undergoes glycolysis in the cytoplasm,where it is oxidized to produce two 3 carbon pyruvate molecules.Pyruvate's fate is determined by whether or not the cells have mitochondria and oxygen.
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a cell is treated with a drug that prevents the formation of vesicles. which of the following processes depends on the formation of vesicles and would therefore be blocked? view available hint(s)for part a a cell is treated with a drug that prevents the formation of vesicles. which of the following processes depends on the formation of vesicles and would therefore be blocked? alignment of eukaryotic chromosomes at the metaphase plate cytokinesis in a plant cell separation of eukaryotic chromosomes at anaphase cytokinesis in an animal cell
The correct option is C ; cytokinesis in a plant cell separation of eukaryotic chromosomes at anaphase . Endocytosis is the production of vesicles that transport particles and droplets from the outside to the inside of the cell.
Exocytosis is the movement of secretory vesicles from the inside to the exterior of the cell.
COPII, COPI, and clathrin are the three primary coat proteins involved in vesicle production. COPII coat proteins produce vesicles that go from the ER to the Golgi. COPI coat proteins are utilized to connect components of the Golgi apparatus and to generate vesicles that travel from the Golgi to the ER.
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a virus has been discovered. the virus has no envelope and consists of a helical capsid surrounding its dsdna genome. during assembly, the pac site of the genome ensures that it is properly packaged by the capsomeres. which of the following amino acids is/are expected to be on the capsomere domain that interacts with the pac site?
Rhabdoviruses are an exception to this rule and are RNA viruses that create "ball-shaped" nucleocapsid structures. Animal viruses that exhibit helical symmetry are often these viruses.
Which virus kind displays helical symmetry? Rhabdoviruses are an exception to this rule and are RNA viruses that create "ball-shaped" nucleocapsid structures. Animal viruses that exhibit helical symmetry are often these viruses.Examples of animal viruses with helical symmetry include rhabdoviruses.Supporting viral adhesion to host cells and viral nucleic acid penetration into the host cell.Sharp bumps that project from the surface of the outer envelopes of coronavirus family members are present.The spike proteins that cause those lumps are called.Glycoproteins are what they really are.The presence of a carbohydrate means they do (such as a sugar molecule).A virion is a completely constructed infectious virus.A capsid, a protein coat that serves as a shell to shield the viral genome from nucleases, and nucleic acid (single- or double-stranded RNA or DNA) make up the simplest virions.To learn more about helical symmetry refer
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If maize seeds are sown at a spacing of 60 cm
by 90 cm, what is the plant population of maize
expected on one hectare of farmland?
The plant population of maize expected on one hectare of farmland is 1.85 x 10000 = 18,500.
To calculate the plant population of maize expected on one hectare of farmland, we need to determine the number of plants that can be planted per square meter and then multiply that by the number of square meters in a hectare.
A 60 cm by 90 cm spacing is equivalent to 0.6 m by 0.9 m or 0.54 square meters per plant. So, one square meter can accommodate 1/0.54 = 1.85 plants.
A hectare equals 10,000 square meters (1 ha = 10000 m^2). So, if we multiply the number of plants per square meter (1.85 plants/m^2) by the number of square meters in a hectare (10,000 m^2), we get the number of plants expected on one hectare of farmland.
Therefore, the plant population of maize expected on one hectare of farmland is 1.85 x 10000 = 18,500 plants.
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Integrins connect the extracellular environment and allow the cell to move by interacting with which intracellular components? A. desmoglein and dynein B. actin and myosin C. fibronectin and laminins D. selectins and centrosomes
Transmembrane proteoglycans serve as co-receptors for matrix components; nonetheless, integrins are the primary receptors on animal cells that bind the majority of extracellular matrix proteins, including as collagen, fibronectin, and laminin.
These belong to a broad family of homologous transmembrane, cell-matrix adhesion receptors. Integrins, like other cell adhesion molecules, differ from hormone receptors and other extracellular soluble signal molecules in that they typically bind their ligands with lower affinity and are typically present at a concentration on the cell surface that is between tenfold and one hundredfold higher. If the binding was too strong, cells would likely become stuck to the matrix and unable to move, which is not a problem if attachment depends on a lot of weak adhesions. An illustration of the "Velcro principle" is this. Integrins, like other transmembrane cell adhesion proteins, do more than only connect a cell to its environment. Additionally, they stimulate internal signaling pathways that inform cells about the characteristics of the extracellular matrix by bound.
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corn can be grown at a rate of 1,000 kcal per hectare, and it takes 20 times more land to produce beef than it does to produce corn. which of the following equations would correctly calculate the amount of land needed to produce 10,000 kcal of beef?
1 ha/1,000 kcal corn x 20 kcal corn/1 kcal beef x 10,000 kcal beef.
What are the Corn Yield Estimates?To know what to expect during harvest, crop farmers should always estimate their corn yields. Depending on the hybrid choice, planting date, and field uniformity, there may be significant yield variance both within and between fields.
Plants per acre, ears per plant, rows per ear, kernels per row, and kernel weight are the five variables that make up corn production. Typically, these elements are established in this order throughout the growth season.
The Yield Component Method involves measuring these variables to estimate corn yield. This technique is well-liked since it can be applied even before harvest, during the development of the kernels during the milk stage. It is crucial to put a number on these elements.
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estimate the ability of a reverse osmosis plant to reject minerals by calculating the mineral rejection as a percent.
Osmotic Pressure (Π) and is calculated by the equation (Π = TDS/100).
What is reverse osmosis?
Reverse Osmosis is a technology that is used to remove a large majority of contaminants from water by pushing the water under pressure through a semi-permeable membrane.When pressure is added, to the higher level side, that is greater than the current osmotic pressure the flow will be reversed. This reversal allows the contaminant solution to be further concentrated and produces purified water. The adding of pressure to enact the reversal is called Reverse Osmosis or RO.Reverse osmosis is used to produce highly purified water for drinking water systems, industrial boilers, food and beverage processing, cosmetics, pharmaceutical production, seawater desalination, and other applications.To learn more about minerals refers to:
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which of the following accurately describes the ph scale
The most accurate description of the pH scale is that the lower pH correlates with a higher concentration of hydrogen ions in solution. Thus, the correct option is A.
What is pH scale?The pH scale is used for the measurement of how acidic an object is. Objects which are not very acidic are called as basic substances. The scale of pH has values ranging from zero which is the most acidic value to 14 which is the most basic value. The pure water has a pH value of 7, this denotes that it is a neutral substance. pH can be defined as the power of hydrogen ions present in the solution.
A lower pH value correlates with a higher concentration of the hydrogen ions in that solution. A higher pH value correlates with a higher concentration of hydrogen ions in the solution. And, the solutions with a pH value less than 7 are said to be basic.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Which of the following statements accurately describes the pH scale?
A. A lower pH correlates with a higher concentration of hydrogen ions in solution.
B. A higher pH correlates with a higher concentration of hydrogen ions in solution.
C. Solutions with a pH less than 7 are said to be basic.
D. Solutions with a pH greater than 8 are said to be acidic
E. It measures the tonicity of a solution
which of the following processes occurs in meiosis but not in mitosis? which of the following processes occurs in meiosis but not in mitosis? alignment of chromosomes at the metaphase plate chromosome replication condensation of chromosomes synapsis of chromosomes
Synapsis of chromosomes occurs in meiosis but not in mitosis.
What is chromosomes?
Chromosomes are thread-like structures found in the nucleus of most living cells. They are made up of DNA and proteins and are responsible for transmitting hereditary characteristics from parents to offspring. Chromosomes also contain the instructions needed for cells to divide and produce new cells. They come in pairs, with one chromosome from each parent.
Therefore, Synapsis of chromosomes occurs in meiosis but not in mitosis.
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fill in the blaank. the seemingly crazy word___is the actual name for scientists who study the behaviors and habitats and other factors that influence the reproduction and well-being of sea (water) creatures.
Answer:
Environmental marine biologist.
Explanation:
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