unit 7

Question 1

Natural Selection

Answer 1

a process in which individuals with inherited best traits are more likely to survive and reproduce

Question 2

artificial selection

Answer 2

humans make modified species by selecting and breeding desired traits

Question 3

darwins observation and inference one

Answer 3

observation 1: members of a population vary in their inherited traits
Inference 1: individuals whose inherited traits give them a higher possibility of surviving and reproducing in a given environment tend to leave more offspring

Question 4

darwins second observation and inference

Answer 4

Observation 2: all species can produce more offspring than the environment can support and many of these offspring fail to survive and reproduce
Inference 2: this unequal ability of individuals to survive and reproduce will lead to the accumulation of favorable traits in the population over generation

Question 5

population

Answer 5

group of individuals that live in the same area and interbred

Question 6

gene pool

Answer 6

the total alleles in the population

Question 7

microevolution

Answer 7

change in the allele frequencies in a population over generations

Question 8

3 ways allele frequencies change

Answer 8

natural selection, genetic drift, gene flow

Question 9

genetic drift

Answer 9

change from one generation to the next and is unpredictable

Question 10

gene flow

Answer 10

transfer of alleles into and out of a population due to movement of individuals