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: 5740

#XL - T Zoology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as

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#Question id: 3464

#XL - T Zoology

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: 10245

#XL - T Zoology

Which of the following exemplifies an evenly spaced distribution?

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#Question id: 3477

#XL - T Zoology

Which one of the following statements is INCORRECT?

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#Question id: 27244

#XL - T Zoology

The 5' and 3' numbers are related to the