Chapter 16 - Evidence Of Evolution

Question 1

The number of species on an island depends on the size of the island and it’s distance from a mainland. This statement would most likely be made by ______________.

a. an explorer
b. a biogeographer
c. a geologist
d. a philosopher

Answer 1

b. biogeographer

Question 2

Evolution ____________.

a. is natural selection
b. is heritable change in a line of descent
c. can occur by natural selection
d. b and c are correct

Answer 2

d. b and c are correct

Question 3

Which of the following is a fossil?

a. An insect encased in a 10-million-year-old tree sap
b. A woolly mammoth frozen and Arctic permafrost for the last 50,000 years
c. Mineral-hardened remains of a whale-like animal found in an Egyptian desert
d. An impression of a plant leaf in a rock
e. All of the above could be considered fossils

Answer 3

e. All of the above could be considered fossils

Question 4

Did Pangea or Gondwana form first?

Answer 4

Gondwana

Question 5

The bones of the bird’s wing are similar to the bones in a bat’s wing. This observation is an example of _____________.

a. uniformity
b. evolution
c. comparative morphology
d. a lineage

Answer 5

c. comparative morphology

Question 6

If the half-life of a radioisotope is 20,000 years, then a sample in which three-quarters of that radioisotope has decayed is ________ years old.

a. 15,000
b. 26,667
c. 30,000
d. 40,000

Answer 6

d. 40,000

Question 7

Forces of geological change include _________ (select all that are correct).

a. erosion
b. fossilization
c. volcanic activity
d. evolution
e. tectonic plate movement
f. wind
g. asteroid impacts
h. hot spots

Answer 7

a. erosion
c. volcanic activity
e. tectonic plate movement
f. wind
g. asteroid impacts
h. hot spots

Question 8

The Cretaceous ended ________ million years ago.

Answer 8

65.5

Question 9

Life originated in the __________.

Answer 9

Archaean Eon

Question 10

Through __________, a body part of an ancestor is modified differently in different lines of the descent.

a. morphological divergence
b. adaptive divergence
c. morphological convergence
d. homologous evolution

Answer 10

a. morphological divergence

Question 11

Homologous structures among major groups of organisms may differ in ___________.

a. size
b. shape
c. function
d. all of the above

Answer 11

d. all of the above

Question 12

Match the terms with the most suitable description.

\_\_\_ fitness
\_\_\_ fossils
\_\_\_ homeotic genes
\_\_\_ half-life
\_\_\_ homologous structures
\_\_\_ uniformity
\_\_\_ analogous structures
\_\_\_ natural selection

Answer 12

Match the terms with the most suitable description.

\_\_\_ fitness
\_\_\_ fossils
\_\_\_ homeotic genes
\_\_\_ half-life
\_\_\_ homologous structures
\_\_\_ uniformity
\_\_\_ analogous structures
\_\_\_ natural selection