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Sveta_85 [38]
3 years ago
10

Science! Please help, Thanks if you do.

Biology
1 answer:
arlik [135]3 years ago
7 0

Answer:

Explanation:

Mutation is the word used to describe the heritable change in genetic makeup of an organism. This change in turns may help with adaptation for survival or be a disadvantage to the organism in its environment.

Natural selection is a concept in evolutionary biology that describes the process by which heritable traits are confered for survival and reproductive advantage to individuals. It also focus on how related individuals, tend to be passed on changes in traits to succeeding generations and how this trait become more frequent in a population while also observing how other less favourable traits and weak individuals tend to become eliminated from the environment.

Choosing two examples from the above;

• For instance, having large bodies and dark fur serves the purpose to camouflage, for mimicry, and big animals' body parts for agility in competition and colour helps to cover themselves. All these mutations that increases body size and changes the fur color are for physical adaptations.

If there is a change in this features the animals are easily exposed and may not survive.

• Some specific parts of the body of variety of animals are adapted to survival as the environment changes. Among such features are having sharp claws and sharp teeth. A mutation like this provides the animal with body structure that is adapted to survival. Without these features feeding and catching preys for some omnivores and carnivores would be almost impossible reducing the population size.

• Having body structure like dull teeth and hooves are adapted for the survival of terrestrial leaves grazers. Hooves makes running faster and escaping from predators easy. Dull teeth however makes grass cutting for ruminant animal easy.

In the occurrence of forest fire the hooves animals can escape easily, the big bodied animals will be disadvantaged. When the weather or climate changes mimicry / camouflage fur is will be disadvantaged.

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Identify whether or not the different agents of evolutionary change could affect allele frequencies in a population?
igomit [66]

Yes, the different frequencies of evolutionary change could affect allele frequency in a population.

<h3>What are the agents of evolutionary change? </h3>

All populations are usual in a constant state of evolution. This means that all the species are continuously changing their genetic makeup over different generations. These changes can be subtle or they can be spontaneous.

If a population is not evolving, it is said to be in Hardy - Weinberg state. In this state, the allele frequency and the genetic makeup of the population will remain the same across generations.

The agents of evolutionary change defy the Hardy - Weinberg state. These are mutation, gene flow, non-random mating, natural selection and genetic drift.

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Answer:

it Changes according to the receptor.

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Which traits are polygenic traits? Check all that apply.
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Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. There is also a wide range of skin color across people. Skin color is also a polygenic trait, as are hair and eye color.

All the above:

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Is salmon and shark are the same
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No they are not the same...

Explanation:

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