The following table shows the number of individuals of each species found in two communities

The calculated evenness values for communities C1 and C2, respectively are

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#Question id: 10603

#Section 2: Evolution

The population size of a bird increased from 600 to 700 in one year. If the per capita birth rate of this population is 0.50, what is its per capita death rate?

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#Question id: 12443

#Section 1: Ecology

r-strategists typically

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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: 10239

#Section 1: Ecology

Two species of barnacle, balanus balanoides and Chthamalus stellatus, occur in the intertidal regions of Scotland. As following

 Which of the following statements is correct?

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#Question id: 3448

#Section 2: Evolution

Which scientist devised a rule that predicts when natural selection should favor altruism?