Course

Introductory Biology

Study Pack

Set 18 The Outcomes Of Evolution Macroevolution

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Question 1

(Multiple Choice)

Free
Moss A produces gametes in May, and moss B produces gametes in June. This is an example of a/an ________ isolating mechanism.

A) temporal
B) behavioral
C) post-mating
D) geographic

Answer

Question 2

(Multiple Choice)

Free
In the absence of geographic barriers, ________ speciation may occur when reproductive isolating mechanisms develop between two populations.

A) sympatric
B) allopatric
C) ecological
D) extrinsic

Answer

Question 3

(Multiple Choice)

Free
The many species of tree frogs that inhabit forests in the eastern United States maintain their genetic isolation from other species by several mechanisms, including "singing" slightly different songs. Which type of isolating mechanism does this represent?

A) temporal isolation
B) behavioral isolation
C) ecological isolation
D) mechanical isolation

Answer