the optimal shape to dig a planting hole should have a width that is two to three times that of the plant's root ball and a depth that is identical to that of the plant's root ball which needs to be transplanted.
What is a plant's root ball?When mature plants or hedges are grown across a sizable area, such as a field, the root ball and dirt are taken from the earth when the plants are dormant.
Things to keep in mind while transplanting a plant:A day before working the soil, thoroughly water it. Plant roots lose moisture when the soil is excessively dry, which may harm the roots. To make a level and smooth surface, use a rake. Create a planting hole that is roughly as deep and slightly larger than the rootball of the plant.To know more about root ball visit
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As a population approaches carrying capacity, environmental resistance __________.
A. remains constant
B. cannot be determined from the graph
C. increases
D. decreases
As a population approaches carrying capacity, environmental resistance
c) increases
A circuit's opposition to current flow is measured by its resistance.
The Greek letter omega () stands for ohms, which are used to measure resistance. Georg Simon Ohm (1784–1854), a German physicist who examined the connection between voltage, current, and resistance, is the subject of the name "Ohm." He is credited for coming up with Ohm's Law.
To some extent, all materials obstruct current flow. They can be broadly divided into two categories:
Conductors are substances that have extremely little resistance and allow electrons to pass freely. Examples include gold, silver, copper, and aluminum.
High resistance materials that impede the flow of electrons are known as insulators. Examples include plastic, rubber, glass, paper, and rubber.
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Which of the following statements is true?
A
Cell processes that decrease entropy within a living organism can occur without an input of energy.
(Choice B)
B
Living cells can violate the second law of thermodynamics when they build large, ordered molecules from smaller, less-ordered starting materials.
(Choice C)
C
The organization seen in living cells, tissues, and organs is maintained by a constant input of energy.
(Choice D)
D
The net effect of endothermic reactions in an organism and the release of heat into the surroundings is an overall decrease in the entropy of the universe.
option C is true among the given statement. The organization seen in living cells, tissues, and organs is maintained by a constant input of energy.
It is easier to think of the body's structures in terms of fundamental organizational levels that increase in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms, and biosphere. Scientists examine the simplest building blocks of matter to study the chemical level of organization: subatomic particles, atoms, and molecules. All matter in the universe is made up of one or more distinct pure substances known as elements, with hydrogen, oxygen, carbon, nitrogen, calcium, and iron being familiar examples. An atom is the smallest unit of these pure substances (elements). Subatomic particles such as the proton, electron, and neutron comprise atoms.
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which is not considered a sex-linked trait?purple flower color in pea plantseye color in fruit fliesred-green color blindness in humanshemophilia in humans
In pea plants, the gene for purple petal color is not carried by a sex chromosome. As a result, it is not a sex-linked trait.
A sex-linked trait is a feature of an entity whose genes are found on the sex chromosome. Eye color in fruit flies, red-green color blindness in humans, and hemophilia are all sex-linked genetically inherited diseases since their genes are carried on the same chromosome.
Sex-linked qualities are those that are influenced by genes on the sex chromosomes. Because the X and Y chromosomes differ, men and females may have different inheritance patterns for certain features. Color blindness, which is more common in men, is an example of a sex-linked trait.
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A major subdivision of the nervous system that serves as communication lines, linking all parts of the body to the CNS.
The CNS communicates with the body's muscles, glands, and sensory receptors via the PNS (cranial and spinal nerves and ganglia).
Your nervous system's portion that is located apart from your brain and spinal cord is known as your peripheral nervous system (PNS). It is essential for carrying out both brain and body directives as well as relaying information from various sections of the body back to the brain.One of the two parts that make up the nervous system in bilateral animals is the peripheral nervous system (PNS), with the other part being the central nervous system (CNS). The PNS is made up of ganglia and nerves that are not part of the brain or spinal cord. As a sort of relay between the brain and spinal cord and the rest of the body, the PNS's primary job is to connect the CNS to the limbs and organs. [2] In contrast to the CNS, the PNS is not shielded by the blood-brain barrier, the vertebral column, or the skull, leaving it vulnerable to toxins.
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Fill in the blank: the variable that is observed and measured in an experiment is the ________.
a) independent variable
b) dependent variable
c) controlled variable
d) experimental variable
The variable that is observed and measured in an experiment is the (b) dependent variable.
What is meant by experiment?An experiment is a technique used to confirm or deny a hypothesis, as well as assess the likelihood or effectiveness of something that has never been tried before.
Experiments show what happens when a specific factor is modified, which sheds light on cause-and-effect relationships.
The purpose and scope of experiments vary widely, but they all rely on a repeatable process and a logical examination of the outcomes.
Natural experimental experiments are also a thing.
While a youngster may conduct simple experiments to better grasp how objects fall to the ground, scientific teams may spend years conducting thorough research to increase their understanding of a phenomenon.
In the scientific classroom, experiments and other hands-on activities are crucial to students' learning.
A variable is an element or circumstance that can change or take on different values in a scientific experiment or study. The variable being measured, observed, and whose changes are being examined in relation to the independent variable is the dependent variable. The variable that the researcher is manipulating or controlling and whose impact on the dependent variable is being investigated is known as the independent variable.
The explanation of variable or dependent variable are:Temperature, for instance, would be the independent variable and plant growth, the dependent variable in a study looking at how temperature affects plant growth. The temperature would be changed (for example, some plants would be kept at a warm temperature while others were kept at a lower temperature), and the researcher would measure the growth of the plants to determine how the temperature influenced it.
The independent variable is typically something the researcher can influence, whereas the dependent variable is something the researcher can track and quantify.
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S8.A.3.1.1 Describe a System
Question 4
The human body is composed of many systems that operate to maintain
homeostasis. The digestive system is made up of many distinct parts that
serve to perform the function of supplying the body with the necessary
energy to perform all bodily
functions.
What is the primary role of the stomach in the human digestive system?
The gastrointestinal (GI) tract, along with your liver, pancreas, and gallbladder, make up your digestive system.
What is Digestive system?The GI tract is made up of a number of interconnected hollow organs that extend from your mouth to your anus.
Your mouth, esophagus, stomach, small intestine, large intestine, and anus are the organs that make up your GI tract, in the order that they are joined.
Your digestive system is specially designed to carry out its function of converting food into the nutrients and energy you require to exist. After that, it conveniently compresses your solid waste, or stool, for disposal the next time you have a bowel movement.
Therefore, The gastrointestinal (GI) tract, along with your liver, pancreas, and gallbladder, make up your digestive system.
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Answer:
(A): using muscle contraction and enzymes to break down food
Explanation:
at least on my end
Which of the following statements about homologous chromosomes is likely to be true?
A.
The genes of homologous chromosomes may interact with each other to influence traits.
B.
Homologous chromosomes are found in diploid cells.
C.
Homologous chromosomes typically have the same genes in the same locations.
D.
all of these
Answer:
D. all of these
Explanation:
All the statements are likely to be true:
A. The genes of homologous chromosomes may interact with each other to influence traits.
B. Homologous chromosomes are found in diploid cells.
C. Homologous chromosomes typically have the same genes in the same locations.
Thinking
e rag
11 Apply Look around you to find an object
in motion. Describe the object's motion by
discussing its position and direction of motion
in relation to a reference point. Then explain
how you could determine the object's speed.
I observe a fan blowing around the room. The fan is rotating in a clockwise direction and is moving in a circular pattern around the room.
What is the clockwise ?
Clockwise is a direction that is determined by the movement of a clock's hands: from the top of the clock to the right, then down and to the left, and then back up to the top. It is the opposite of counterclockwise. Clockwise motion can be seen in the rotations of fans, wheels, and other objects. It is also used to describe the order in which people or things move around in a circle. In relation to a reference point, the fan is moving at a constant distance away from the point in a clockwise direction. To determine the speed of the fan I could time how long it.
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Protists are famous for being a diverse and interesting group. One cool fact is that they can be either _______ or _______.
Select one:
a.
eukaryotic, prokaryotic
b.
bacteria, monerans
c.
plant, animal
d.
unicellular, multi-cellular
Protists are famous for being a diverse and interesting group. One cool fact is that they can be either bacteria or monerans.
What are the characteristics of protists?A protist is any eukaryotic organism that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor, the exclusion of other eukaryotes means that protists do not form a natural group, or clade.
Three types of animal-like protists are paramecium, euglena, and amoebas. Euglena is special in that they are both animal-like and plant-like.
Protist is any member of a group of diverse eukaryotic, predominantly unicellular microscopic organisms. They may share certain morphological and physiological characteristics with animals or plants or both.
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In which two phases of mitosis does the nuclear membrane appear or disappear?
The nuclear membrane disappears during prophase and does not reappear until metaphase. It reappears during mitosis in the telophase. The nuclear membrane disappears during prophase and does not reappear until metaphase. It reappears during mitosis in the telophase.
It is a type of cell division in which two daughter cells are formed, each with the same number and type of chromosomes as the parent nucleus.
Mitosis occurs in four stages: prophase, metaphase, anaphase, and telophase.
Prophase and telophase are the two phases of mitosis in which the nuclear membrane disappears and reappears.
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If the haploid number for a species is 3, each dividing diploid cell will have how many chromatids at metaphase?a. 3 b. 6 c. 9d. 12 e. 18
Each dividing diploid cell will have 12 chromatids at metaphase in mitosis if the haploid number for a species is 3. d)12
One of a chromosome's two identical halves that has been replicated in order to get the cell to divide is called a chromatid. A chromosomal region known as the centromere is where the two "sister" chromatids are fused. Spindle fibres join to the centromere during cell division and pull the sister chromatids to the opposing sides of the cell. Following this, the cell divides in two, producing daughter cells with the same DNA.Chromatid. In order to replace damaged cells that cannot be healed or proliferate, cell replication is crucial. The cells present when a cut on your skin heals are a good illustration of this. Similar to the old cells, the new cells are also identical. Your chromosomes, which contain the genetic material that determines who you are, must be replicated and sent to every new cell as a part of cell replication. It is possible to carefully separate these chromosome copies, known as chromatids, into new daughter cells while still preserving the right number of chromosomes in each cell.
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What type of selection occurs by selective breeding of plants or animals by humans in order to pass specific traits on to the next generation?
Artificial selection is the identification of desirable traits in plants and animals by humans, as well as the steps taken to improve and perpetuate those traits in future generations.
Artificial selection works in the same way as natural selection, except that in natural selection, nature makes the decisions rather than humans. In nature, organisms produce more offspring than they can survive and reproduce. Offspring with traits that make them more likely to survive, mature, and reproduce in their environment pass those traits on to the next generation. Natural selection acts as a sieve, or remover of undesirable traits, as this occurs generation after generation. As a result, organisms gradually adapt to their environment. Natural selection will change if the environment changes.
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How many different combinations of height genes can each parent make in their gametes?
Given that each parent has gametes with four different allele combinations, this cross can result in any of sixteen possible outcomes. A reproductive cell in an animal or plant is called a gamete.
a fully formed male or female germ cell with a haploid chromosome set that may mate with a gamete of the opposite sex to produce a new diploid individual. Sperm and ova are the names for the male and female gametes of animals. As haploid cells, eggs and sperm have one copy of each chromosome in each cell. During fertilisation, a sperm and an ovum come together to produce a new diploid organism. A hamlet is a small town without a village hall or another important hub for church or socialising. Imagine a small collection of structures strewn around a highway or at a crossroads, maybe cut off from the towns nearby by a piece of farmland or the surrounding countryside.
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Sort the terms into the appropriate category of either oxygen-poor or oxygen-rich.
Oxygen poor: superior vena cava, right atrium, right ventricle, pulmonary arteries
Oxygen rich: pulmonary veins, left atrium, left ventricle, aorta
The elements listed as oxygen-poor and oxygen-rich are:
- Oxygen-poor:
superior vena cavaright atriumright ventriclepulmonary arteries.- Oxygen-rich:
pulmonary veinsleft atriumleft ventricleaorta, and aorta.The oxygen content of the blood is determined by the overall balance between oxygen-rich and oxygen-poor elements. Oxygen-rich blood is typically found in the pulmonary veins, left atrium, left ventricle, aorta, and aorta. This blood is rich in oxygen because it has just passed through the lungs where it has been exposed to oxygen-rich air.
On the other hand, oxygen-poor blood is typically found in the superior vena cava, right atrium, right ventricle, and pulmonary arteries. This blood has not been exposed to the oxygen-rich air of the lungs and thus is relatively poor in oxygen content. The overall balance between these two elements is important for the proper functioning of the cardiovascular system.
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turkey vultures eat carrion, which is decaying animal matter, like roadkill. how are they classified?(1 point)
Turkey vultures have a huge impact on the health of our ecosystems. They remove decomposing bodies, serving as nature's cleaning staff.
The balance of our ecosystems is maintained in large part by vultures. Without them, carcasses would accumulate and infections would spread from rotting flesh. This limits the spread of specific diseases and improves the general air quality.They quickly consume carrion before it decomposes because their extraordinarily high stomach acids disintegrate many of the harmful compounds present in dead animals.Vultures are excellent in removing diseases and pollutants from the environment because they often devour dead animal corpses. Turkey vultures are therefore carnivores that eat rotting animal matter.
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what information can be deduced from a pedigree? select the two answers that are correct.
O the probability of parent or grandparent being infertile O the probability that Y-chromosome analysis will prove paternity O how an X-linked trait is passed down over generations O the probability of female being carrier of an X-linked allele O how autosomal traits contribute to X-linked traits
Options A and B, the probability of a female being a carrier of an X-linked allele and how an X-linked trait is passed down over generations
A pedigree is a chart that shows the inheritance of a trait over several generations.
By analyzing a pedigree, it is possible to deduce information about the genetic makeup of family members and the probability of certain individuals being carriers of a particular allele.
Pedigrees can be used to identify X-linked traits, which are traits that are controlled by genes located on the X chromosome. X-linked traits are inherited differently than autosomal traits, and pedigrees can help to determine the probability of a female being a carrier of an X-linked allele and how an X-linked trait is passed down over generations.
However, it cannot be used to determine the probability of a parent or grandparent being infertile or how autosomal traits contribute to X-linked traits or the probability that Y-chromosome analysis will prove paternity.
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Which correctly describes the role of histones in eukaryotic cell division?
1.histones copy the dna before division begins.
2.histones protect the ends of chromosomes.
3.histones connect sister chromatids.
4.histones keep the dna compact and organized.
Histones keep the DNA compact and organized describes the role of histones in eukaryotic cell division.
What is eukaryotic cell?Eukaryotes are creatures with nuclei in their cells. Eukaryotes include include animals, plants, fungi, and many unicellular creatures. They are members of the Eukaryota or Eukarya group of organisms, which is one of the three domains of life. The other two domains are Bacteria and Archaea. Eukaryotes are creatures with nuclei and other membrane-bound organelles. Eukaryotic creatures include all mammals, plants, fungi, and protists, as well as the majority of algae. Eukaryotes can be single-celled or multicellular in nature. Other membrane-bound organelles seen in eukaryotic cells include mitochondria and the Golgi apparatus. Chloroplasts can be found in plants and algae. Prokaryotic cells may contain primitive organelles.
Here,
Histones maintain DNA compact and ordered, which characterizes histones' role in eukaryotic cell division.
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Which layer of skin does the hair originate from
The first and second layers of skin are where hair is born. The epidermis is the outermost layer, whereas the dermis is the second layer.
A hair's root and strand are encased in a tube-like structure called a hair follicle. Our skin's top two layers contain hair follicles. Our skin's first and second layers, as well as occasionally your third layer (hypodermis), are home to the follicles that hold our terminal hair, which includes the hair on our scalp, eyelashes, and brows.
Even though it is the thinnest layer of skin, the epidermis, which has five layers of its own, guards you from the elements. The top two layers of skin on your body are the dermis and epidermis. The top layer is called the epidermis, while the middle layer is called the dermis. The epidermis and hypodermis are separated by the dermis.
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How many days can humans live without water?
the body requires a lot of water to maintain internal temperature balance and keep cells alive.In general a person can survive for about three days without water.
In the 1940s, the scientist J. B. S. Haldane linked many human red blood cell disorders with the tropical regions where malaria occurs. Haldane hypothesized that the widespread presence of these red blood cell disorders as well as traits that protect individuals from malaria were the result of natural selection. Haldane’s hypothesis was later confirmed by the research of A. C. Allison. The resistance to malaria carried by individuals in areas where malaria is widespread is the result of
The resistance to malaria carried by individuals in areas where malaria is widespread is the result of: individual's own composition of genes.
Malaria is a disease caused by the bite of the species of Plasmodium. It is a febrile disease. The general symptoms are: fever, chills, and flu-like conditions. Upon biting, the mosquito injects the malarial parasites inside the body that cause the disease.
Genes are the basic factors that contain the information for the traits of an individual. Genes are the small segments of the large DNA. Each gene is responsible for encoding the information for a specific protein.
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What are the two types of isolation in speciation?
When two populations that can interbreed are isolated behaviorally. Geographic isolation happens when two populations are divided by physical obstacles.
A species' conduct during mating rituals and signals is the basis for behavioral isolation, which is reproductive seclusion. It also goes by the name of ethological isolation and happens when two populations are able to interbreed but choose not to do so due to variations in their courtship behaviors. One of the many cues to the intricate courtship rituals of their search-courting-mating process, such as breeding calls (auditory stimuli), mating dances (visual stimuli), pheromones (chemical stimuli), etc., can be noticed in these distinctions. Behavior isolation stops individuals from wasting time and energy courting, mating, and hunting for partners who will not result in fruitful offspring, which is essential for the survival of the species.
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e
Using the cell-as-a-city
analogy, what is a vacuole?
A. A power plant because it produces
energy for the cell.
B. A warehouse because it stores nutrients
and water.
C. Waste management because it helps the
cell get rid of waste.
A vacuole is waste management because it helps the cell get rid of waste. The correct option is C.
What is a vacuole?A membrane-bound cell organelle known as a vacuole. Animal cells typically have tiny vacuoles that aid in the sequestration of waste. Vacuoles in plant cells aid in preserving the equilibrium of water.
Maintaining cell acidity and turgor pressure, controlling the storage and movement of substances, regulating the transport and localization of crucial proteins.
These are done through the endocytic and lysosomal-vacuolar transport pathways, and responding to biotic and abiotic stresses are among the primary roles of vacuoles.
Thus, the correct option is C.
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A cell with two full sets of chromosomes would be termed a _______________ cell.
A. haploid B. sister C. somatic D. diploid
Answer: Diploid
Explanation:
Diploid is the cell which contains the two full set of chromosomes (2n).
A botanist used a Punnett Square to calculate the percentage of phenotypes they should see in their latest generation of flowers. Their predictions estimated that 75% of their crop should have the dominant phenotype and 25% should have the recessive. However when they check their plants, they find that only 50% had the dominant and 50% had the recessive. What could be the reason for this?
Answer:
The reason for the discrepancy between the Punnett Square predictions and the actual results could be due to the presence of genetic linkage, which is when two or more genes that are located close to each other on the same chromosome tend to be inherited together more often than expected by chance. Another possibility is that the plants were not randomly mating, which would alter the expected ratio of genotypes and phenotypes. Finally, mutation could also be the cause, as it can lead to new genetic variants that were not accounted for in the Punnett Square predictions.
Explanation:
There could be a few reasons why the botanist's predictions did not match the actual results:
Environmental factors: Environmental factors such as temperature, light, or disease can influence the expression of certain genes and affect the phenotype of the flowers.
Genetic drift: Genetic drift is a random fluctuation in allele frequencies that can occur in small populations. This can cause a deviation from the expected Mendelian ratios.
Mutation: Mutation is a change in the DNA sequence that can result in a new allele, which can affect the phenotype of the flowers.
Non-Mendelian inheritance: Some genes exhibit non-Mendelian patterns of inheritance such as incomplete dominance, codominance, or epistasis, which can affect the phenotype of the flowers.
Sampling error: The botanist might have taken a small sample of flowers for observation, and the sample might not be representative of the whole population, leading to different results than expected.
It is important to consider that genetic factors are complex and can be influenced by various factors, and the exact cause of the discrepancy between the predictions and the actual results would require further investigation.
calculate the efficiency of cellular respiration if a cell generates 32 atp molecules per molecule of glucose.
When a cell produces 32 atp molecules for every glucose molecule, the efficiency of cellular respiration is 84.2%.
How to calculate the efficiency of cellular respiration ?The efficiency of cellular respiration can be calculated by determining the amount of energy produced from the amount of energy used in the process.The energy obtained from breaking down glucose is calculated by subtracting the energy required to break down glucose from the total energy released from the oxidation of glucose. The energy produced from cellular respiration is released in the form of ATP, which is the energy currency of cells.The amount of ATP produced can be calculated by measuring the amount of oxygen consumed. The efficiency of cellular respiration is determined by dividing the amount of energy released by the amount of energy used in the process.32 ATP molecules / 38 ATP molecules (the maximum possible yield from one molecule of glucose) = 0.842 or 84.2%.
So, in this case, the efficiency of cellular respiration is 84.2%.
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the polymer of the macromolecule that is made in the ribosome
The macromolecule produced by the ribosome is a polymer consisting of α-L-amino acids.
Backbone-extended monomers' poor compatibility with the translation apparatus makes ribosome-mediated polymerization of these monomers into polypeptides difficult. A further bottleneck is the methods used to acylate (or charge) these monomers in order to create aminoacyl-tRNA substrates. The ribosome and related components for protein biosynthesis, which make up the cellular translation system, catalyze the synthesis of sequence-defined polymers (polypeptides) using a variety of amino-acylated transfer RNA (tRNA) substrates and a predetermined coding template (messenger RNA). The potential diversity of polymers that can be generated is constrained in nature because this method only uses a small number of α-L-amino acid monomers.
However, efforts to increase the genetic code have demonstrated that the natural translation system is capable of selectively adopting a wide variety of non-canonical monomers over the past 20 years.
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why are there no chloroplasts contained within the cells of the onion, even though they are plant cells?
There are no chloroplasts contained within the cells of the onion, even though they are plant cells because energy is stored in the onion fruiting body (bulb) rather than through photosynthesis.
A specialized organelle that is not found in animals is present in plants. Chlorophyll, a pigmented chemical, is found in these chloroplasts. This makes photosynthesis in plants easier and gives plants their typical green color.
Because the onion grows underground, the bulb does not contain chloroplasts. These organelles are not required if chloroplasts are not going to be exposed to sunlight because they are used to make sugar in the presence of sunlight. Instead, the onion begins its growth with energy reserves before producing a stem. The only chloroplasts in the plant are found in this greenery.
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hazards and safety practices of raising animals
Observe the two scenarios involving electrically charged objects. Predict what will happen when you bring the objects close together. (2 points) The balloon will attract the soda can, while the two balloons will repel each other. The balloon will attract the soda can, while the two balloons will do nothing. The balloon will repel the soda can, while the two balloons will also repel each other. The balloon and soda can will do nothing, while the two balloons will repel each other.
A negatively charged inflatable is brought in close proximity to a positively charged beverage can in the first scenario. The second scenario involves bringing a negatively charged balloon up close to another negatively charged balloon. While the two balloons will reject one another, the balloon will draw the soda can.
What transpires when two electrically charged items come into proximity to one another?Like charges repel one other, but opposite charges attract. Whenever two negative charges objects are brought close to one another, an attractive force is created. The same repelling force is generated when two positively charged objects are brought close to one another.
What happens when two particles that are negatively charged get close to one another?When two positively charged particles come into contact, a repelling force is generated. The repelling force moves along their centres and in a straight line. This is referred to as an electrostatic repulsion or coulomb interaction.
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Imagine that you are a genetic counsellor, and a couple planning to start a family comes to you for information. Mary’s brother has albinism (recessive disorder), but Mary's parents do not have albinism. Her husband, John, has been tested and has not been found to be a carrier. What is the probability that Mary is a carrier?
Albinism is autosomal recessive inheritance. Hence, the probability that Marry is a carrier is 1/2.
What is autosomal recessive inheritance?Using autosomal recessive inheritance, a genetic disorder or trait can be passed from parent to offspring. When a child receives one copy of a mutant (changed) gene from each parent, a genetic disease may result. A child with an autosomal recessive disease typically does not have affected parents.
Albinism is an example of autosomal recessive inheritance in which hair and skin color is very light due to a lack of melanin hormone. This condition increases the risk of skin cancer.
Each kind of albinism is caused by a mutation of a particular gene on a particular chromosome, which results in the malfunction of melanocytes. Thus, the probability that Marry is a carrier is 1/2.
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