High genetic variability increases the chances that some members of the population will possess genetic traits that make them more resistant to the new disease.
What is genetic variability?Genetic variability is the amount of diversity found within a species or population due to genetic differences. It is caused by changes in the genetic code, or DNA, that can occur through mutation, recombination, or other genetic processes. This variability can result in different physical characteristics, behaviors, and susceptibilities to disease. Genetic variability is important for maintaining the health and survival of a species or population, as it increases the chances of adaptation to changing environmental conditions. It also provides the opportunity for the population to evolve to become more optimized for its habitat and maximize its fitness.
This gives the population a better chance of surviving the disease, as some individuals will survive and pass on their more resistant traits to the next generation.
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Part E
Soap is a relatively soft substance compared to rocks, so it has a higher rate of weathering. That means the impact from the water droplets will break apart the soap faster than a rock. Evidence of the scattered, broken soap pieces can likely be found on the sink where you conducted your experiment.
Based on what you know about chemical and mechanical weathering, determine which type of weathering affected the soap. Explain your answer.
Assertion: Deficiency symptoms occur if the soil is lacking any particular element.
Reason: Excess minerals cause toxicity.
Here, the assertion i.e., deficiency symptoms occur if the soil is lacking any particular element is correct. But the reason is incorrect.
What is toxicity?When a material is exposed to or contaminated with another substance, it can have toxic consequences that result in serious biological harm or death.
When the soil is deficient in vital substances like nitrogen, phosphorus, potassium, magnesium, etc., deficiencies manifest as symptoms.
Only when the plant is given those crucial nutrients can these symptoms be managed.
Only very little amounts of micronutrients are required by plants, and too much of them can be harmful and impair normal body processes.
Thus, here, the assertion is true but the reason is incorrect.
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Use evidence to explain the effects of draining a peatland on the ecosystem. Predict how these changes could affect global ecosystems if global temperatures continue to rise. Give specific examples to justify your prediction. Type your answer in the space provided.
The effects of draining a peatland on the ecosystem are support a wide variety of plant and animal species, drained for agriculture and other human activities, changes in weather patterns and sea levels.
Describe draining a peatland?Draining a peatland refers to the process of removing water from a peatland, which is a wetland ecosystem that is characterized by the accumulation of peat, a type of soil made up of partially decomposed plant material. Peatlands are found in many parts of the world, including bogs, fens, and mires.
Draining a peatland can have a significant impact on the ecosystem, as peatlands are unique habitats that support a wide variety of plant and animal species. When a peatland is drained, the water table drops, which can lead to the loss of wetland habitats and the species that depend on them. This can also lead to an increase in the amount of carbon dioxide released into the atmosphere, as the peat dries out and decomposes.
One specific example of this can be seen in the peatlands of Southeast Asia, which have been widely drained for agriculture and other human activities. This has led to the loss of habitats for unique species such as the Sumatran rhinoceros and the orangutan, as well as the release of large amounts of carbon dioxide into the atmosphere.
If global temperatures continue to rise, the effects of peatland drainage on global ecosystems could become even more pronounced. As temperatures increase, the rate of decomposition of peat will likely increase, releasing even more carbon dioxide into the atmosphere. This could contribute to further warming, potentially leading to the loss of even more habitats and species, as well as changes in weather patterns and sea levels.
In addition, the loss of peatlands as carbon sinks could exacerbate the effects of climate change. Peatlands store huge amounts of carbon and when drained, they release it into the atmosphere, contributing to global warming. Peatlands are also known to play an important role in the water cycle by reducing the risk of flooding and drought, the drainage of peatlands can disrupt these critical ecosystem services.
In summary, the draining of peatlands can have significant impacts on ecosystems, including the loss of habitats and species, disruption of the water cycle, and the release of large amounts of carbon dioxide into the atmosphere. If global temperatures continue to rise, these effects could become even more pronounced, potentially leading to the loss of even more habitats and species, changes in weather patterns, sea levels and overall destabilization of the ecosystem.
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38. Coat colour in general has intrigued scientists all over the world for centuries. Such an interest 4 could be explained by its phenotypic characteristics being easily recognizable, making it simple to follow the inheritance from generations to generations. Therefore, coat colour has become a model phenotype for studying gene action and gene interactions. The given diagrammatic representation shows the inheritance of coat colour in mice.
Analyze it carefully and answer the following questions
a. Identify the dominant and recessive trait in the coat colour.
b. Which mouse is heterozygous for coat colour-A/B/C/D? Support your choice with a valid reason
c. Find out the phenotypic and genotypic ratio if two members in the family "P" interbreeds (Show the working using a Punnett square)
d. Find out the phenotypic and genotypic ratio if a female in family P interbreeds with a white coat coloured male in family R. (Show the working using a Punnett square)
Inheritance of coat color in mice is determined by the interaction of genes, hormones, and environmental factors.
What do you mean by inheritance?
In biology, inheritance is the process by which characteristics are passed from one generation to the next. Inheritance occurs when an organism passes on its genes, or genetic information, to its offspring. This includes both physical traits, such as eye color and hair color, as well as more complex traits, such as intelligence and personality. Inheritance plays an important role in evolution, as it allows for the adaptation of species to their environment over time.
A. The dominant trait in the coat color is black (represented as B) and the recessive trait is white (represented as b).
B. Mouse C is heterozygous for coat color as it contains both the dominant and recessive trait (Bb).
C. The phenotypic ratio and genotypic ratio of the interbreeding between two members in family "P" will be 1:1 for both the ratio. The Punnett square for this interbreeding is shown below:
P1: BB
P2: Bb
B B
B Bb
D. The phenotypic ratio of the interbreeding between a female in family P and a white coat colored male in family R will be 3:1, with black being the dominant phenotype. The genotypic ratio will be 1:2:1, with BB, Bb, and bb being the genotypes. The Punnett square for this interbreeding is shown below:
P: Bb
R: bb
B Bb
b Bb
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What is genetic engineering and its scope?.
Genetic engineering, also known as genetic modification, is the use of biotechnology to directly manipulate an organism's genome. It is a set of technologies used to change the genetic composition of cells, including gene transfer within and across species boundaries, in order to create better or novel organisms.
Genetic engineering has enormous potential in the fields of drugs, medicines, and pharmaceuticals. Various diseases, including genetic disorders, can be diagnosed and treated using gene therapy. Genetic engineering can be used to create drugs, drug delivery systems, and vaccines for a variety of deadly diseases such as Hepatitis B, AIDS, smallpox, and others.
Genetic modification can be used to improve various crops in agriculture and animal husbandry.
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what is the main purpose of the human genome project?
What is the difference between protease and protease?.
The difference between proteases and other proteases is lies in the breaking of peptide bonds.
Enzymes are protein compounds that act as biocatalysts that accelerate chemical reactions. Enzymes work by reacting with substrate molecules to produce compounds through organic chemical reactions that require lower activation energy.
Proteases are enzymes that hydrolyze proteins into simpler compounds such as small peptides and amino acids. Protease enzymes are produced by the pancreas and stomach and there are three types of these enzymes namely trypsin, pepsin, and chymotrypsin. The way to distinguish one protease enzyme from another is by looking at the location where the peptide bond is broken, in the middle, at the end, or at the beginning.
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Where is the brachial vein located ?
The brachial vein is located in the upper limb. It is a deep vein that runs alongside the brachial artery, which is the major blood vessel that supplies blood to the arm.
The brachial vein begins at the elbow, where it collects blood from the smaller veins in the forearm, and it continues upward to the shoulder where it joins the axillary vein to form the subclavian vein. The brachial vein is important for returning oxygen-poor blood from the upper limb back to the heart, where it can be oxygenated and recirculated throughout the body. Additionally, the brachial vein is used as a site for venipuncture, a medical procedure in which a needle is inserted into the brachial vein to draw blood samples or administer medication.
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Part B: Simulate Deforestation
Next, you’ll build a simulation showing the changes in a portion of the forest over time. This sample shows a forest region.
Forest Region
A 3 by 4 grid of rectangle blocks. 2 are black and 10 are gray.
Gray: untouched region (150 trees per block)
Black: deforested region (no surviving trees)
Use your word-processing program’s table maker to create three grids showing the rate of deforestation of a forest in three different years—year 1, year 5, and year 10. Choose colors to represent the deforested and untouched regions. Provide a key that shows the number of trees represented by each block, as well as the colors that represent the forested and deforested areas.
Here are the specifications for your forest:
The forest is represented by a 5 x 5 grid.
Year 1: There are a total of 4,500 trees in your forest and no deforestation. Figure out how many trees represent each block.
Year 5: 1,080 trees were deforested.
Year 10: An additional 1,980 trees were deforested.
After you’ve completed your grids, use the Insert Image button to insert screen shots of the grids in the answer space.
The simulation could involve creating a model of a forested area, and then using different parameters such as logging rate, natural growth rate, and the impact of human activities like agriculture, mining, and urbanization to simulate the changes in the forest over time.
How to explain the simulation?The simulation could also incorporate data on factors like population growth and climate change to show how these factors affect the rate of deforestation.
It is also worth noting that there are a wide variety of tools and software available for creating ecological simulations, and some of them are open-source and free to use, so you can use them to model your simulation.
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what form of reproduction produces variation within its offspring?
Sexual reproduction results in variations in the offspring. The offspring produced by sexual reproduction have mixed traits of both parents.
The production of offspring is referred to as reproduction. There are two types of reproduction: sexual reproduction and asexual reproduction. An organism that reproduces sexually combines the genetic information from both parents and is genetically unique. Asexual reproduction occurs when one parent copies itself to produce genetically identical offspring.
The two processes that occur during this stage are gamete formation (gametogenesis) and gamete transfer. Gametes are sex cells that are naturally haploid (23 chromosomes) and distinct in males and females.
Reproduction ensures the species' survival and prevents it from becoming extinct. It contributes to evolution by generating variations through genetic recombination. It contributes to the increase in the number of species in the ecosystem.
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At what point in the swing of the pendulum is the potential energy completely converted into kinetic energy?.
At the point of contact between the pendulum and the item, the potential energy is totally transformed into kinetic energy.
What is the transition point from potential energy to kinetic energy?Even when an object is not moving, it still possesses potential energy. Potential energy turns into kinetic energy when a force is applied or when motion is initiated (energy of motion).
What point in the pendulum's course does potential energy become kinetic energy?The pendulum has potential energy when it first begins to swing. The pendulum's potential energy is transformed into kinetic energy as it swings downward. The kinetic energy of the pendulum is transformed back into potential energy as it swings upward.
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Is insertion a silent mutation?.
Insertion is a silent mutation.
Insertions or deletions that change the reading frame might result in silent alterations as well. Silent mutations are frequently viewed as neutral to evolution because they do not change protein function.
Insertion is a type of mutation in genomics when one or more nucleotides are added to the DNA sequence. During an insertion, any number of nucleotides can be introduced, from one to a whole chromosome.
Nucleotide alterations that do not cause an alteration in the amino acid sequence are known as silent or synonymous mutations. In a database of roughly 10,000 mutations, these changes represent around 4% of all TP53 mutations.
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The atmosphere is made up of four different layers: the thermosphere, mesosphere, stratosphere, and troposphere. Which of the following is NOT true regarding the composition and structure of the the atmosphere?
The statement that is not true regarding the composition and structure of the atmosphere is:
The stratosphere is warmer at the top than at the bottom.
The correct option is B.
What is the atmosphere?The layer of gases collectively referred to as air that is kept by Earth's gravity and forms the planet's planetary atmosphere is known as the atmosphere of Earth.
The layers of the four atmospheres are:
the thermospheremesospherestratosphere, andtroposphere.The mesosphere lies between the thermosphere and the stratosphere.
The troposphere is the lowest layer of Earth's atmosphere.
The thermosphere is the atmospheric region from ∼85 to ∼500 km altitude
The stratosphere is cooler at the top than at the bottom.
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Complete question:
The atmosphere is made up of four different layers: the thermosphere, mesosphere, stratosphere, and troposphere. Which of the following is NOT true regarding the composition and structure of the atmosphere?
The thermosphere is the atmospheric region from ∼85 to ∼500 km altitude
The stratosphere is warmer at the top than at the bottom.
The mesosphere lies between the thermosphere and the stratosphere.
The troposphere is the lowest layer of Earth's atmosphere.
is the primary link between the endocrine and nervous systems.
The endocrine,brain and neurological systems are connected via the hypothalamus.
Your brain's hypothalamus is a structure located there. It serves as the primary connection between your neurological system and endocrine system. Your body maintains homeostasis, a stable state of equilibrium, thanks to the hypothalamus. The hypothalamus, which regulates communication between the neurological and endocrine systems via chemical messengers, interacts with both of these systems.The endocrine,brain and neurological systems are connected via the hypothalamus. They both play a vital role in maintaining the body's functionality and ability to respond appropriately to stimuli. Although not directly, there are nevertheless significant interactions with the nervous system. The pituitary gland, which regulates the production of hormones in the body, is controlled by the hypothalamus, which connects the two.
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What happens to a cell when we die.
Answer: These cells will eventually die and break down, which makes your body appear inviting to a ton of different bacteria. Additionally, as those bacteria consume the cellular waste left over from your body, they spit out their own waste, creating the sounds and smells associated with decomposition.
What type of mutations have no effect on amino acid production because of redundancy in code?.
A silent mutation is a modification to the DNA's nucleotide base sequence that doesn't affect the amino acid or the protein's overall function.
Occasionally, a single amino acid will change, but if it has the same characteristics as the amino acid it replaced, there won't be much of a change. Silent mutations can occur for a variety of reasons, but the important thing to remember is that they do not alter how an amino acid or subsequent proteins function.
The silent mutation actually involves a thymine to cytosine conversion at the DNA level. A mistake in DNA replication or a type of repair that took place after the DNA was replicated could both have resulted in this mutation.
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Zero population growth occur when a population ha the ame number of individual entering the population birth a thoe leaving the population death
When a population's birth rate and death rate are equal over time, there will be no net population increase.
When the population is stabilized by balancing the death and birth rates, there is no further population increase. It only occurs when annual births and immigration are equal to annual deaths and emigration. Significant ramifications for total GDP growth, levels of consumption and investment result from zero population increase.
Zero population is constant, there is population growth. Due to an equal number of births and deaths, the population is stable. The number of births per 1,000 people per year is referred to as the birth rate, whereas the number of deaths per 1,000 people per year is referred to as the mortality rate.
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What factors influence flexibility List 3 factors to support your answer?.
Your level of flexibility will rely on a number of variables, some of which you can influence and others which you cannot.
Joint architecture- The human body has a variety of various types of joints. Different people have different ranges of motion (ROM).
Gender and age- As you age, your ROM and flexibility inevitably decline. This is caused, in part, by the fibrosis of the fibrous connective tissue that substitutes for muscle fibres.
Connective Tissue-ROM can be restricted by deep connective tissue like tendons and fascia. These tissues differ in their capacity to stretch and then return to their original length (elasticity) as well as their propensity to maintain a longer length after stretching.
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Estuaries are productive ecosystems because they constantly receive nutrients from
answer choices
rivers and oceans
coral reefs
lakes and ponds
photosynthesis
what phase does the nuclear membrane reappear around new chromosome set?
The phase when the nuclear membrane reappear around the new chromosome set is metaphase.
The nuclear membrane is an important structure that surrounds the nucleus of a cell.
During late prophase, the nuclear membrane will begin to break down allowing the chromosomes to move to the center of the cell. As the cell progresses through metaphase, the sister chromatids line up in the center of the cell and the nuclear membrane will reappear around the new set of chromosomes.
The nuclear membrane then remains in place until the cell enters anaphase where the sister chromatids will begin to separate and move away from each other.
The nuclear membrane will then disappear again until the cell enters telophase where the membrane will reform around the two sets of chromosomes.
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A nerve cell ( neuron ) fiber that carries impulses away from the cell body .
Axon is a nerve cell ( neuron ) fiber that carries impulses away from the cell body .
What is axon?
Neurons are very specific cells. They may respond to stimuli (irritability) and transport stimuli from one region of the cell to another (conductivity). They have an extremely high oxygen need; they cannot survive for more than a few minutes without it. They lose their ability to reproduce soon after birth, but if the cell body stays intact, they can repair cell processes.
Anatomy of a Neuron
Neurons are made up of a cell body that houses the nucleus, the majority of the cytoplasm, and two types of cell processes. A typical neuron has many dendrites, which are branching processes that carry impulses toward the cell body, and a single axon, which is a long straight process that carries impulses away from the cell body.
Axons are also known as nerve fibers. Axons are encased in concentric layers of the cell membrane of a cell termed a Schwann cell in most regions of the body. The covering, known as the myelin sheath, facilitates in impulse transmission across the axon.
Synapse
The telodendrion of an axon sends its impulse to another neuron or an effector organ such as a muscle cell through the narrow synaptic gap at a synapse.
When a nerve impulse reaches the telodendrion, it stimulates the release of neurotransmitters, which are small sacs of chemicals. Neurotransmitters go across the synaptic gap, bind to and excite the other cell. The released neurotransmitter is soon deactivated by enzymes in the synaptic region.
The nerve impulse
At rest, the cell membranes of neurons are electrically polarized. Ion pumps cause the interior of the cell to be around 70 millivolts negative in comparison to the exterior. This polarized membrane is like a charged battery that is ready to go.
When a threshold stimulation is provided to the cell membrane, it depolarizes, which means that ions pass across the membrane briefly reversing the charges. The charges immediately revert to their original arrangement, and a neighboring region goes through the same process. This charge reversal continues to flow down the membrane like a wave.
Therefore axon is the correct answer.
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Please help due tmr afternoon
What role does the sensory
division play in the nervous
system?
A. carries response to stimuli slowly
B. senses internal and external surroundings
C. makes decisions of how to respond to stimulus
D. performs reflexes
Carries response to stimuli slowly is the role does the sensory division play in the nervous system.
What is the sensory division?The sensory (afferent) division transports sensory impulses from central nervous system receptors through afferent nerve fibres (CNS). It can be separated into somatic and visceral divisions for further subdivision. Signals coming from receptors in the skin, muscles, bones, and joints are carried by the somatic sensory division.The CNS receives signals from peripheral organs through the afferent or sensory division. Impulses from the CNS are sent out to the peripheral organs through the efferent or motor division to produce an effect or action.The sensory division gathers data (touch, pain, pressure, vision, taste, etc.) from both the somatic and visceral sides of the body and sends it to the central nervous system.Learn more about Sensory division refer to ;
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Which statement describes what will most likely occur when warm air cools and the temperature drops to the dew
point?
O Air will contain more water vapor.
O Dew will form on leaves.
O Clouds will disappear.
O Water vapor in the air will evaporate.
Mark this and return
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O Dew will form on leaves.
The dew point is the temperature at which water vapor in the air will condense into liquid droplets. It is a measure of the amount of moisture in the air. The higher the dew point, the more moisture in the air. The dew point temperature is determined by the air temperature and the amount of water in the air. When air cools, its capacity to hold moisture decreases. If the air cools to its dew point, the excess moisture condenses, forming dew.
In the morning, the temperature on the ground is often more excellent than the temperature in the air. As the sun rises, the ground warms up, and the air above it cools. As the temperature drops to the dew point, the moisture in the air condenses on surfaces such as leaves, blades of grass, and other outdoor surfaces that are at or near the dew point temperature.
The statement "Air will contain more water vapor" is incorrect, as dew forms when the air can no longer hold its moisture and the excess water vapor condenses.
The statement "Clouds will disappear" is not correct, as dew formation is a phenomenon related to the condensation of water vapor, and clouds are formed by the same process, but at higher altitudes. "Water vapor in the air will evaporate" is also not correct, as the temperature dropped to the dew point, which is the point where the water vapor condenses, not evaporates.
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period of nuclear cellular division in which two daughter cells are formed, each containing a complete set of chromosomes?
A cell divides during mitosis to produce two daughters that are exactly same.
The method requires replicating the chromosomes first and then meticulously separating the copies to provide each new cell a full set since it is crucial that the daughter cells have a copy of every chromosome.
When do meiosis' two daughter cells emerge?In telophase I, the nuclei enclose the chromosomes. The parent cell's cytoplasm is now split into two daughter cells through a process in the cell known as cytokinesis. One set of chromosomes, or half as many as the total number of chromosomes in the mother cell, makes up each daughter cell, which is haploid.
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What is the process called when the material taken in by endocytosis is large , such as a food particle or another cell ?
Phagocytosis (literally, "cell eating") is a type of endocytosis that involves the transport of large particles into the cell, such as cells or cellular debris.
Phagocytosis is an important process for nutrition in unicellular organisms, and it is found in specialized cells called phagocytes in multicellular organisms. Phagocytosis is the recognition and ingestion of particles larger than 0.5 m into a plasma membrane-derived vesicle known as a phagosome.
Phagocytosis is the cellular process by which particles larger than 0.5 m in diameter, such as microorganisms, foreign substances, and apoptotic cells, are ingested and eliminated. Phagocytosis is found in many different types of cells and is thus an important process for tissue homeostasis.
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Which best describes the arrangement of phospholipids in a phospholipid bilayer like that found in a cell membrane?ATwo layers of phospholipids where the outer layer has the hydrophobic tails facing toward the outside of the cell and the inner layer have the hydrophobic tails facing toward the inside of the cell.BTwo layers of phospholipids where the outer layer has the hydrophilic heads facing toward the outside of the cell and the inner layer have the hydrophilic heads facing toward the inside of the cell.CTwo layers of phospholipids where the outer layer has the hydrophilic heads facing toward the outside of the cell and the inner layer have the hydrophobic tails facing toward the inside of the cell.DTwo layers of phospholipids where the two layers have alternating components such that one pair of components across the membrane are arranged head to tail and the pair adjacent to it are arranged head to tail in the opposite direction.EA single layer of phospholipids where the hydrophilic head is facing toward the outside of the cell and the hydrophilic tail is facing toward the inside of the cell.
'Two layers of phospholipids where the outer layer has the hydrophilic heads facing toward the outside of the cell and the inner layer have the hydrophobic tails facing toward the inside of the cell'.
What exactly do you mean by phospholipids?
Phospholipids are molecules composed of two fatty acid chains connected to a phosphate group. They are a major component of cell membranes and are essential for the function and stability of cellular membranes. They play a role in many biological processes, including cell signaling, cell membrane transport, and cell division.
The phospholipid bilayer is a key component of the cell membrane, which acts as a barrier between the inside and the outside of the cell. The two layers of phospholipids form a lipid bilayer, with the hydrophilic heads facing outward and the hydrophobic tails facing inward. This prevents the diffusion of hydrophilic molecules into the cell, while at the same time allowing hydrophobic molecules to cross the membrane. The phospholipid bilayer also serves as a barrier to the diffusion of ions and other small molecules, providing the cell with a degree of control over what enters and exits the cell.
Hence, option C is correct.
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What eats clams eat?.
Clams are preyed upon by a wide variety of fish, including catfish, carp, and sunfish, as well as by birds, crayfish, and frogs.
Clams are consumed by a number of species, including otters, raccoons, and muskrats. Clams are a common food source for animals. They are enjoyed by fish and shorebirds alike, who occasionally crack them open by dropping them from a high height upon boulders. They are consumed by starfish by using their strong arms to pry them open.
In their shared home with clams, moon snails feed voraciously. They locate clams, perhaps through chemoreception, and then enclose them with their large foot, frequently dragging them deeper into the sand.
Shark eyes are another name for lobe-tailed moon snails. Both species are carnivores that eat other mollusks such mussels, moon snails, hard clams, razor clams, and surf clams. They begin by using their foot to wrap around their prey.
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The complete question is
What snail eats clam ?
What is the cause of repetition of properties of elements?.
The cause of repetition of properties of elements in a period is due to the repetition of similar electronic configuration of their atoms in the outermost energy shell after certain regular interval.
The cause of periodicity in properties is the repetition of similar outer electronic configuration after certain regular intervals in a period . For example, all the elements of group IA i.e., alkali metals, have similar outer electronic configuration. In a similar manner all the halogens i.e., elements of group VIIA have similar other electronic configurations and hence possess similar properties. Due to similar outer electronic configurations, the properties of elements are also similar and hence they show periodicity.
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If all the poisonous frogs eggs are genetically engineered, right, after fertilization to include a gene that prevents poison production, what is the ratio of poisonous to non-poisonous, frogs in the offspring
If all the poisonous frog's eggs are genetically engineered, after fertilization they should include a gene that prevents poison production, then the ratio of non poisonous to poisonous frogs is 100% to 0%.
What is the significance of genetic engineering?Genetic engineering is helpful to remove any kind of genetic disorder, such as when the poisonous frog egg is genetically engineered after fertilization so that the gene responsible for the poison is removed. This is the result of producing only non-poisonous frogs.
Hence, if all the poisonous frog's eggs are genetically engineered, after fertilization they should include a gene that prevents poison production, then the ratio of non poisonous to poisonous frogs is 100% to 0%.
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