12.1

Question 1

What is natural selection?

Answer 1

The process where traits of a species are eliminated or made more common, changing the species.

Question 2

What is genetic drift?

Answer 2

Random events that can dramatically alter the gene pool, such as a tsunami killing multiple of a species and possibly erasing several traits.

Question 3

What is variation?

Answer 3

Many different alleles and phenotypes in a gene pool.

Question 4

What is fitness?

Answer 4

The amount of offspring a member of a species has

Question 5

What is an adaptation?

Answer 5

A trait that starts as a mutation in a species becoming more common because it helps that species survive in an environment.

Question 6

What are the five fingers of evolution?

Answer 6

Mutation, movement, mating, natural selection, and population

Question 7

How are genetic drift and natural selection alike and different?

Answer 7

Both may cause an allele in a species to not exist. Genetic drift is a random process, natural selection is specific.