Question 1

Match each stage in the evolution of humans to its description.
-first in the human line to use tools; had a diet that included meat instead of a vegetarian diet

Accepted Answer

A) Homo habilis 
B) Homo sapiens 
C) Australopithecus afarensis 
D) Homo erectus

Question 2

Darwin's proposal that organisms that are better suited to their environment are more likely to survive and reproduce is termed ________.

Accepted Answer

The answer of Darwin's proposal that organisms that are better...

Question 3

The evolution of eukaryotic cells began approximately ________ years ago.

Accepted Answer

A)  1 million 
B)  10 million 
C)  1.7 billion 
D)  3.8 billion 
E)  4.6 billion

Question 4

Movement of individuals into or out of population that results in a redistribution of alleles is called ________.

Accepted Answer

The answer of Movement of individuals into or out of...

Question 5

With the advent of photosynthesis and the subsequent production of oxygen by photosynthetic organisms, most of the anaerobic organisms present on Earth became extinct because oxygen was actually toxic to these organisms.

Accepted Answer

A) True 
 B)False

Question 6

The best-known extinction during which all dinosaurs died out completely occurred during the ________ time period.

Accepted Answer

The answer of The best-known extinction during which all dinosaurs...

Question 7

In the 1940s, the population of whooping cranes in North America neared extinction, with fewer than 30 birds surviving. The population has since expanded to several hundred birds today. It is likely that these several hundred birds will exhibit very little genetic diversity. This is an example of

Accepted Answer

A)  biogeographical distribution. 
B)  the bottleneck effect. 
C)  random mutation. 
D)  population effect. 
E)  immigration.

Question 8

When considering evolution, structures of present-day organisms that have the same function but did not develop from the same ancestral structure are said to be ________.

Accepted Answer

The answer of When considering evolution, structures of present-day organisms...

Question 9

Match each stage in the evolution of humans to its description.
-decline in sexual dimorphism; formation of hunting and gathering groups that shared food; first in the human line to move from Africa to Europe and Asia

Accepted Answer