单项选择题

According to the passage the primary function of allelomimetic behavior in bird is to ______.

A．defend nests against predators
B．look at each other
C．locate prey
D．warn against predators
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单项选择题
Which of the following places is the most likely setting for allelomimetic behavior
A．A lake.
B．A cave.
C．An underground tunnel.
D．A thick forest.
单项选择题
The main topic of the passage is the ______.
A．value of allelomimetic behavior in vertebrate and invertebrate species
B．definition and distribution of allelomimetic behavior
C．relationship of allelomimetie behavior to the survival of the fittest
D．personality factors that determine when an individual animal will show allelomimetic behavior
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