chapter 14

Question 1

The actions of humans are having negative impacts on the environment at a global scale. Of the options listed, which impact is an EXCEPTION to this trend

Answer 1

Decrease in human cardiovascular disease

Question 2

Biological species consist of groups of

Answer 2

Populations

Question 3

Under the biological species concept, what criterion is used to assign populations of organisms to the same biological species

Answer 3

Ability to interbreed and produce fertile offspring

Question 4

The biological species concept cannot be applied to

Answer 4

Fossils

Question 5

A reproductive barrier that prevents individuals from closely related species from interbreeding is an example of

Answer 5

A prezygotic barrier

Question 6

Which type of reproductive isolating mechanism is described by a situation in which female fireflies’ mate only with males who emit light in a particular pattern

Answer 6

Behavioral isolation

Question 7

The type of reproductive barrier that occurs when reproductive structures of different species are physically incompatible is referred to as

Answer 7

Mechanical isolation

Question 8

When two frog species, Rana pipiens and Rana sylvatica, mate, the offspring die early in embryonic development. This is an example of

Answer 8

Reduced hybrid viability

Question 9

Which scenario describes allopatric speciation

Answer 9

A population of squirrels is separated by the Grand Canyon. The two subpopulations evolve into two distinct species

Question 10

Sympatric speciation specifically EXCLUDES

Answer 10

Geographic isolation