Choose the density-dependent factor that will slow population growth as population size increases.

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#Question id: 16813

#Section 4: Behavioural Ecology

Which of the following animal excretes solid urine?

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#Question id: 10743

#Section 1: Ecology

 Darlington proposed that

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#Question id: 11169

#Section 1: Ecology

The viceroy butterfly (limenitis archippus) resembles the queen butterfly (danaus gilippus), a species toxic to birds because of alkaloids it stores during larval development from the milkweeds it feeds upon. The viceroy butterfly is an example of what kind of defense against predation?

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#Question id: 15724

#Section 2: Evolution

Neo-Lamarckism includes several theories based on the old idea of inheritance of modifications acquired during an organism’s lifetime. In a famous experiment done by,

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#Question id: 12102

#Section 1: Ecology

Use the following diagram of Joseph Connell's study of barnacle distribution in Scotland to answer the following two questions

Which of the following is the most logical conclusion about the distribution of the two species of barnacle, Chthamalus and Balanus?