To estimate the number of foxes in an area, a researcher conducted a mark-recapture survey. In the first survey, he caught and marked N number of foxes. In his second survey a week later, he caught 120 foxes of which 90 were unmarked (recaptures). If you are told that the actual number of foxes in this area is 400, what is value of N in this area?

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#Question id: 10611

#Section 1: Ecology

If the net reproductive rate (R0) is equal to 0.5, what assumptions can we make about the population?

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#Question id: 8914

#Section 2: Evolution

Which of the following is (are) unique to animals?

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#Question id: 10816

#Section 2: Evolution

When a harmless species takes advantage by resembling the aposematic coloration of other species that are toxic, it is called _____________________.

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#Question id: 3378

#Section 2: Evolution

Following certain conditions is present in a population?

A- Large Population

B- Each locus follows complete dominance

C- No reproductive advantage

D- No migration

E- No linkage between genes

Which of the following above condition allowed to validity of Hardy- Weinberg Prediction?

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#Question id: 12329

#Section 1: Ecology

In a tide pool, 15 species of invertebrates were reduced to eight after one species was removed. The species removed was likely a(n)