Multiple Choice
What is the effect of habitat fragmentation by humans on rates of speciation?
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23. Speciation
Introduction to Speciation
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Which of the following types of prezygotic isolating mechanisms is described correctly?
A
Behavioral isolation occurs when two species have different physical structures preventing mating.
B
Geographical isolation occurs when two species are separated by a physical barrier.
C
Temporal isolation occurs when two species breed at different times of the year.
D
Mechanical isolation occurs when two species have different mating rituals.
Verified step by step guidance1
Understand the concept of prezygotic isolating mechanisms, which are barriers that prevent species from mating and producing hybrid offspring.
Review the definition of behavioral isolation: it occurs when two species have different mating behaviors or rituals, not physical structures.
Examine geographical isolation: it is correctly described as occurring when two species are separated by a physical barrier, such as a mountain or river.
Consider temporal isolation: it occurs when two species breed at different times, such as different seasons or times of day, preventing them from mating.
Analyze mechanical isolation: it involves differences in physical structures that prevent successful mating, not differences in mating rituals.
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