Question 1

The most direct hominid ancestor to Homo sapiens is called ________.

Accepted Answer

The answer of The most direct hominid ancestor to Homo...

Question 2

There are several sources of scientific evidence to support the theory of evolution. Match each of the following to its description.
-study of the structure of molecules to infer evolutionary relatedness of organisms

Accepted Answer

A) comparative biochemistry 
B) fossil record 
C) comparative embryology 
D) taxonomy 
E) comparative anatomy

Question 3

The structure of human cytochrome c is the same as that of chimpanzees, but it differs from the structure of cytochrome c in chickens by 16 amino acids and in yeast by more than 50 amino acids. From these data, one could hypothesize that humans are most closely related evolutionarily to

Accepted Answer

A)  chimpanzees. 
B)  yeast. 
C)  dogs. 
D)  chickens. 
E)  chimpanzees, chickens, and yeast equally because they all have cytochrome c.

Question 4

The first self-replicating molecule hypothesized to have formed on Earth was ________.

Accepted Answer

The answer of The first self-replicating molecule hypothesized to have...

Question 5

The process of ________ has had a major impact on species distributions worldwide.

Accepted Answer

A)  continental drift 
B)  comparative biochemistry 
C)  genetic engineering 
D)  divergent speciation 
E)  adaptive mobility

Question 6

In the classification of organisms, a phylum is subdivided into

Accepted Answer

A)  orders. 
B)  kingdoms. 
C)  tribes. 
D)  genera. 
E)  classes.

Question 7

When two species contain identical or nearly identical molecules such as proteins, this suggests

Accepted Answer

A)  genetic modification has occurred to the populations. 
B)  the two species share a common ancestry. 
C)  the two species are in fact only one species displaying divergent evolution. 
D)  the two species are in fact only one species displaying convergent evolution. 
E)  the two species overlap in niches and likely share a common diet.

Question 8

The largest mass extinction in the history of Earth occurred during the Triassic period; the extinction was largely due to global warming and a period of high carbon dioxide concentration in the atmosphere.

Accepted Answer

A) True 
 B)False

Question 9

Because the fossil record is now complete, it provides compelling evidence to support the theory of evolution.

Accepted Answer

A) True 
 B)False

Question 10

Periods of adaptive radiation are most likely to occur after a change in the environment causes new habitats to form.

Accepted Answer

A) True 
 B)False

Question 11

________ refers to random changes in allele frequency as a result of chance events.

Accepted Answer

The answer of ________ refers to random changes in allele...

Question 12

Humans are classified as hominoids because

Accepted Answer

A)  they have larger bodies and bigger brains than other primates. 
B)  all primates are classified in this group. 
C)  they have hair during some part of their lives. 
D)  at one point in their evolutionary history, they possessed a tail. 
E)  aerobic metabolism uses hemoglobin for oxygen transport.

Question 13

Homo habilis is considered to be the first of our human ancestors to make tools.

Accepted Answer

A) True 
 B)False

Question 14

As oceans began to form on Earth billions of years ago, they were small, warm, and not very salty.

Accepted Answer

A) True 
 B)False

Question 15

Primitive photosynthetic organisms were responsible for producing oxygen gas in the atmosphere.

Accepted Answer

A) True 
 B)False

Question 16

The wings of birds and insects share similar functions but evolved from different structures; therefore, these wings are said to be

Accepted Answer

A)  homologous. 
B)  biramous. 
C)  uniramous. 
D)  analogous. 
E)  bipedal.

Question 17

Based on the following information on the scientific classification of the flesh fly, determine which one of the following is the scientific name for the flesh fly. Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Sarcophagidae
Genus: Sarcophaga
Species: bullata

Accepted Answer

A)  Arthropoda bullata 
B)  Sarcophagida insecta 
C)  Insecta sarcophaga 
D)  Sarcophaga bullata 
E)  Animalia insecta

Question 18

In an evolutionary context, ________ structures do not currently have a function in present-day organisms.

Accepted Answer

The answer of In an evolutionary context, ________ structures do...

Question 19

The process of producing energy from organic substrates in the absence of oxygen is called ________ metabolism.

Accepted Answer

The answer of The process of producing energy from organic...

Question 20

The concept of gene flow indicates that evolution of populations can occur when individuals enter or leave a population. The addition of new alleles into the population makes it easy to visualize changes to phenotypes. Explain how emigration can lead to evolutionary change.

Accepted Answer

The answer of The concept of gene flow indicates that...

Exam 22: Evolution and the Origins of Life

The most direct hominid ancestor to Homo sapiens is called ________.

There are several sources of scientific evidence to support the theory of evolution. Match each of the following to its description. -study of the structure of molecules to infer evolutionary relatedness of organisms

The structure of human cytochrome c is the same as that of chimpanzees, but it differs from the structure of cytochrome c in chickens by 16 amino acids and in yeast by more than 50 amino acids. From these data, one could hypothesize that humans are most closely related evolutionarily to

The first self-replicating molecule hypothesized to have formed on Earth was ________.

The process of ________ has had a major impact on species distributions worldwide.

In the classification of organisms, a phylum is subdivided into

When two species contain identical or nearly identical molecules such as proteins, this suggests

The largest mass extinction in the history of Earth occurred during the Triassic period; the extinction was largely due to global warming and a period of high carbon dioxide concentration in the atmosphere.

Because the fossil record is now complete, it provides compelling evidence to support the theory of evolution.

Periods of adaptive radiation are most likely to occur after a change in the environment causes new habitats to form.

________ refers to random changes in allele frequency as a result of chance events.

Humans are classified as hominoids because

Homo habilis is considered to be the first of our human ancestors to make tools.

As oceans began to form on Earth billions of years ago, they were small, warm, and not very salty.

Primitive photosynthetic organisms were responsible for producing oxygen gas in the atmosphere.

The wings of birds and insects share similar functions but evolved from different structures; therefore, these wings are said to be

Based on the following information on the scientific classification of the flesh fly, determine which one of the following is the scientific name for the flesh fly. Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Diptera Family: Sarcophagidae Genus: Sarcophaga Species: bullata

In an evolutionary context, ________ structures do not currently have a function in present-day organisms.

The process of producing energy from organic substrates in the absence of oxygen is called ________ metabolism.

The concept of gene flow indicates that evolution of populations can occur when individuals enter or leave a population. The addition of new alleles into the population makes it easy to visualize changes to phenotypes. Explain how emigration can lead to evolutionary change.