Evolution

Question 1

Gradualism

Answer 1

Evolution proceeds in small, gradual steps

Question 2

Evolution

Answer 2

Cumulative change in a group of organisms

Question 3

Adaptive radiation

Answer 3

A large number of species arise from a single common ancestor in response to an ecological opportunity

Question 4

Punctuated equilibrium

Answer 4

Rapid spurts of genetic change causing rapid speciation with long periods of little change

Question 5

Convergent evolution

Answer 5

Unrelated species evolve similar traits even though they live in different parts of the world

Question 6

Genetic drift

Answer 6

Any change in allele frequencies in a population that results from chance

Question 7

Divergent evolution

Answer 7

Two or more species share a common ancestor but evolves differently due to their environment

Question 8

Bottleneck

Answer 8

Occurs when a population declines to a very low level then rebounds causing the population to have reduced diversity

Question 9

Founder effect

Answer 9

Occurs when a group of individuals with different allele frequency than the original population must become separated, uncommon alleles may become common

Question 10

Genetic equilibrium

Answer 10

Must have no genetic drift, no gene flow, no natural selection, no mutation, and mating must be random