Which of the following is a behavioral pattern that results from a proximate cause?

A) A male sheep fights with another male to improve its social position and find a mate.
B) A female bird lays its eggs when day length begins to shorten.
C) A cat kills a mouse to obtain food.
D) A cockroach runs into a crack in the wall and avoids being stepped on.
E) A goose squats and freezes motionless to escape a predator


Answer: B) A female bird lays its eggs when day length begins to shorten.

Biology & Microbiology

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A "de facto" wilderness is an area that

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Which class of animals has the largest number of species?

A. Arachnida B. Insecta C. Gastropoda D. Bivalvia E. Arthropoda

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_________________ produces new species and _________________ takes them away.

A. Extinction; speciation B. Speciation; extinction C. Background extinction; mass extinction D. Gradual change; punctuated equilibrium

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