Animals tend to maximize their energy intake-to-expenditure ratio. What is this behavior called?

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#Question id: 12584

#Section 5: Applied Ecology & Evolution

Which of the following causes excessively high levels of toxic chemicals in fish-eating birds? 

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#Question id: 4604

#Section 2: Evolution

Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, which develop from similar embryonic tissues. These structural similarities are an example of ________.

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#Question id: 3341

#Section 2: Evolution

In a given population of 400 individuals, 64 percent of population is caused  cancer due to completely dominat allele B. Assuming the population is in Hardy- Weinberg equilibrium, which of the following is the expected proportion of individuals who are not expected to develop the cancer?

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#Question id: 12357

#Section 1: Ecology

A uniform distribution is often the result of 

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#Question id: 11350

#Section 1: Ecology

Which of the following adaptations has been exploited by at least one kind of parasite to circumvent the immune system of its host?