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Biology

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Carmelo Hoeger

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Cards in this guide (9)
What is artificial selection

Artificial Selection Answer Artificial Selection is the breeding of certain traits (better traits) over other traits. For example, breeding a good male horse with excellent racing qualities with a healthy female horse so that the offspring will have the desired traits such as the racing qualities. Another example is breeding good size fruits or vegetable together to keep on getting the good size.

Selection done by humans looking to maximize traits in animals under domestication. These traits are not always for the benefit of the organism though. Men raise these animals and mate the ones they think will breed true for a man favored trait and cull the rest of the organisms by killing them, or by not allowing them to breed.

What causes genetic drift

random chance.

Found how to get product for growt hair

found how to get product for growt hair

What must be true for natural selection to happen

There must be genetic variation in the population

The system must not be in hardy-weinberg equilibrium.

resources must be limited in the ecosystem

How is radioactive dating important for providing evidence for evolution

It tells you when the animal that made a fossil was alive.

Radio carbon dating proves scientifically the age of a given material. If a fossil is found embedded in material that is x number of years old and a similar fossil is found x number of years older or younger then we can surmise the evolution of that species. There are thousands of examples of theoretical evolution using this method.

Why are archaea in a different domain from bacteria

They are thought to have separate paths of evolutionary development.

They developed along different evolutionary paths.

They had independent evolutionary development.

When is genetic drift a major factor in evolution

When there is low gene flow

When there is no selective pressure

When there is a bottleneck

What groups is the smallest level of classification

genus

What is meant by a structure within a structure

A structure that is a member of another structure is a structure within a structure.

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