Quiz Chapter 22

Question 1

The largest unit within which gene flow can readily occur is a

Answer 1

Species

Question 2

Males of different species of the fruit fly Drosophila that live in the same parts of the Hawaiian Islands have different elaborate courtship rituals. These rituals involve fighting other males and making stylized movements that attract females. What type of reproductive isolation does this represent?

Answer 2

Behavioral Isolation

Question 3

According to the punctuated equilibria model

Answer 3

Most new species accumulate their unique features relatively rapidly and then change little.

Question 4

What is true of macroevolution?

Answer 4

Evolution above the species level.

Question 5

Which of the various species concepts distinguishes two species based on the degree of genetic exchange between their gene pools?

Answer 5

Biological

Question 6

Which of the following statements about speciation is correct.

Answer 6

Specialization is a basis for understanding macroevolution.

Question 7

Rank the following from most general to most specific
Sperm-egg incompatibility in sea urchins.
Prezygotic Isolating mechanism
Gametic isolation
Reproductive isolating mechanism

Answer 7

2,4,1,3 
Reproductive Isolating Mechanism 
Prezygotic Isolating Mechanism 
Gametic Isolation
Sperm-egg incompatibility in sea urchins.

Question 8

What is true of the of the flightless cormorants of the Galapagos Islands?

Answer 8

Flightless cormorants on one island have restricted gene flow with those on other islands, which could someday lead to a macroevolutionary event.

Question 9

According to the concept of punctuated equilibrium

Answer 9

A new species accumulates most of its unique features as it comes into existence.