The angle between the minute hand and the hour hand of a clock when the time is 8 : 30 , is

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#Question id: 9570

#Section 1: Ecology

Which of the following would not be a significant component of the energy budget of a person sitting on a park bench on a warm and windy night,

exposed to the clear night sky?

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#Question id: 11173

#Section 2: Evolution

Chemical signals between individuals of the same species are called

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#Question id: 3464

#Section 2: Evolution

Adult male humans generally have deeper voices than do adult female humans, which is the direct result of higher levels of testosterone causing growth of the larynx. If the fossil records ofapes and humans alike show a trend toward decreasing larynx size in adult females and increasing larynx size in adult males, then

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#Question id: 10610

#Section 1: Ecology

Among the following which statement is false about r-selected species?

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#Question id: 11767

#Section 1: Ecology

If a population has a stable age distribution, which of the following statements is true?