3
practice testMultiple Choice

Practice Test

Question 3 • TPS EdX Biology

Which is an example of temporal isolation?

Answer
A
birds that have different mating calls
B
squirrels that have different fur colors
C
flowers that bloom in different months
D
fruit flies that mate in different locations

Explanation

Temporal isolation occurs when populations reproduce at different times, preventing them from mating. Flowers that bloom in different months are active for reproduction at different times, so this is temporal isolation. Different mating calls are behavioral isolation, while mating in different locations is geographic isolation.

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