Question 1

What factors contribute to genetic variation in populations?

Accepted Answer

The answer of What factors contribute to genetic variation in...

Question 2

________ is the relative number of reproductively viable offspring left by an individual.

Accepted Answer

The answer of ________ is the relative number of reproductively...

Question 3

As you visit the high desert of southeastern Arizona,you come to a flowing stream that disappears into the sand.You notice that insects are flying up to the moist sand for a drink,but as the flow varies and waves of muddy water wash over the animals,fine soil particles cover them and entomb them.The beginnings of what process have you just witnessed and what might the next steps be?

Accepted Answer

The answer of As you visit the high desert of...

Question 4

Astronomers have detected the presence of various chemicals in deep space similar to those thought to have been synthesized in Earth's early atmosphere.The environments where those deep space molecules originated would be most likely to contain ________.

Accepted Answer

A) low oxygen, ultraviolet light, methane, nitrogen, and hydrogen 
B) oxygen, no ultraviolet light, and carbon monoxide 
C) abundant oxygen, ultraviolet light, methane, nitrogen, and hydrogen 
D) abundant oxygen, no ultraviolet light, methane, nitrogen, and hydrogen

Question 5

Match each definition in the first column to the correct term in the second column.
-Sugar gliders from Australia and flying squirrels from North America are not closely related mammals but they do resemble one another in appearance and locomotion.This would illustrate the phenomenon of ________.

Accepted Answer

A) Latin binomial 
B) Homo erectus 
C) Chimpanzees 
D) Neanderthals 
E) Australopithecus africanus
F)Astragalus
G)Convergent evolution
H)Ardipithecus ramidus
I)Founder effect
J)Homo habilis

Question 6

DDT was first used as an insecticide in 1942.Resistance genes existed before this time in houseflies and other insects.By 1970,no farmer would bother using this chemical.Why?

Accepted Answer

The answer of DDT was first used as an insecticide...

Question 7

The Abuja family had 10 children by 1950,but due to ill health,there is now only one surviving grandchild.The Bacchus family had 3 children in 1950 and now has 6 grandchildren.Which statement about these families is correct?

Accepted Answer

A) The Abuja family had greater gene flow. 
B) The Abuja family had more gene drift. 
C) The Bacchus family exhibits the bottleneck effect. 
D) The Bacchus family has greater fitness.

Question 8

If you hear a friend call someone a "Neanderthal," why might it conceivably be a compliment?

Accepted Answer

A) They were more lightly built than modern people and therefore physically more attractive. 
B) They cared for those that were old and sick. 
C) They were more creative than modern people. 
D) They had better tools than the modern species.

Question 9

With the problems related to fossilization listed in the text,which of these creatures would be least likely to be successfully fossilized?

Accepted Answer

A) turtle 
B) rose flower 
C) rhinoceros 
D) clam

Question 10

Which of the following groups has more species?

Accepted Answer

A) kingdom 
B) order 
C) phylum 
D) domain

Question 11

What anatomical features help primates to live in trees?

Accepted Answer

The answer of What anatomical features help primates to live...

Question 12

Discuss the major trends in hominin evolution.

Accepted Answer

The answer of Discuss the major trends in hominin evolution....

Question 13

Which of the following is a correctly written scientific name?

Accepted Answer

A) Australopithecus afarensis 
B) homo sapiens 
C) musca domesticus 
D) Acer pennsylvanicus

Question 14

Which of the following is true of the evolution of humans?

Accepted Answer

A) It is complex, with some dead ends. 
B) Humans evolved from chimpanzees. 
C) Organs evolved in concert. 
D) Humans separated from apes about one million years ago.

Question 15

The relative number of reproductively viable offspring produced by individuals is called ________.

Accepted Answer

A) homology 
B) immigration 
C) fitness 
D) taxonomy

Question 16

Different forms of a gene are called ________.

Accepted Answer

A) proteins 
B) genome 
C) alleles 
D) chromosomes

Question 17

Recently,the bones (not fossils)of a possible new species of humans (in the genus Homo)have been found on an island in Indonesia (an island nation southeast of Asia).These people were alive as recently as 17,000 years ago.According to the information in this chapter,why do you think they probably used tools?

Accepted Answer

The answer of Recently,the bones (not fossils)of a possible new...

Question 18

Which of these trends occurred first in hominin evolution?

Accepted Answer

A) large brain 
B) bipedalism 
C) tool use 
D) writing

Question 19

Plants from the genus Solanum include such common vegetables as potatoes and eggplants.The many species include some plants native to tropical West Africa as well as closely related species native to tropical South America.What might you reasonably conclude?

Accepted Answer

A) The trunks of the plants were used as canoes to cross the Atlantic Ocean. 
B) Convergent evolution occurred. 
C) The group must have mutated twice. 
D) West Africa and South America were once joined.

Question 20

Match each definition in the first column to the correct term in the second column.
-The two-part name that consists of the genus followed by the species name first developed by Carl Linnaeus.

Accepted Answer