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Dean Turcotte

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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.

How does natural selection lead to evolution

a species can gradually change into new species

What body cells undergo melosis

sex cells

What causes genetic drift

random chance.

Found how to get product for growt hair

found how to get product for growt hair

What did Malthus think would limit the population size

Food supply

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.

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 is the most ethical reason for running a simulation rather than introducing an actual predator into a real ecosystem

A scientist should observe the natural world without changing or destroying it.

What is a reproductive strategy

The method an organism uses to produce offspring

the way that a species creates offspring

What principles is not part of Darwin's original theory of evolution by natural selection

Random processes are not part of the theory of evolution by natural selection.

What is meant by a structure within a structure

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

How are finches in the Galapaagos Islands a good example of adaptation

Finches developed many different adaptations. For example, one type of finch had a short strong beak meant for cracking seeds, while another had a long narrow beak for gathering food from the inside of flowers, and cacti, therefore making each species more adapted to its specific environment and more able to gather food then they would on another island with a different main food source.

The inclusion of random chance in an experiment is an attempt to imitate aspects of the natural world A.Each individual in a population behaves in a slightly different manner. B.Some organisms a

Each individual in a population behaves in a slightly different manner.

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