When a person removed the predator Pisaster from rocky intertidal areas, the diversity of prey animals changed from 15 to __________. 

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#Question id: 16862

#General Aptitude

He ….. (buy) a car one month ago.

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#Question id: 10869

#Section 1: Ecology

Parasitoidism is most similar to

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#Question id: 8911

#Section 2: Evolution

The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

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#Question id: 11057

#Section 1: Ecology

Bombardier beetles release an explosive mixture of quinones and hydrogen peroxide from glands at the end of their abdomen when disturbed by grasshopper mice and other predators. This is an example of what kind of defense against predation?

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#Question id: 16881

#Section 3: Mathematics and Quantitative Ecology

Null and alternative hypotheses are statements about: