Evolution Test Review

Question 1

Speciation

Answer 1

Creation of a new species through adaptations

Question 2

Differential reproductive success is based on

Answer 2

Genetic variation, competition, and fitness

Question 3

Homologous structures are evolutionary evidence of

Answer 3

Similar anatomical structures

Question 4

Convergent evolution

Answer 4

Two unrelated species have functionally similar strucutres

Question 5

Divergent evolution

Answer 5

Two related species develop functionally different structures

Question 6

Disruptive selection

Answer 6

Two species can develop and the two extreme phenotypes are selected for

Question 7

Directional selection

Answer 7

One extreme of the phenotypes are selected for

Question 8

Stabilizing structure

Answer 8

The medium phenotype is selected for and organisms stay the same for several generations

Question 9

Genetic drift

Answer 9

A chance event limits the genetic variation among a species due to individuals dying out or not reproducing

Question 10

Mutations

Answer 10

Increases genetic variation in a population

Question 11

Gene flow

Answer 11

Migration or introduction of genetic variation into a population

Question 12

Gene pool

Answer 12

All the inheritable genes for traits In A population

Question 13

To properly date newly discovered fossils, scientists rely on ______ toe determine the relative age of these fossils

Answer 13

Index fossils