An explanation for the evolution of insect wings suggests that wings began as lateral extensions of the body that were used as heat dissipaters for thermoregulation. When they had become sufficiently large, these extensions became useful for gliding through the air, and selection later refined them as flight-producing wings. If this hypothesis is correct, insect wings could best be described as

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#Question id: 24206

#Unit 4. Cell Communication and Cell Signaling

The adhesiveness of cadherins depends on the presence of

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#Question id: 28942

#Unit 7. System Physiology – Animal

Which of the following tripeptide hormones, stimulates the secretion of TSH by thyrotropes in anterior pituitary?

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#Question id: 2215

#Unit 2. Cellular Organization

Which statement describes the mode of action of the ABCB1 transporter (the first eukaryotic ABC transporter to be recognized)?

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#Question id: 4701

#Unit 11. Evolution and Behavior

Charles Darwin discussed all of the following EXCEPT:

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#Question id: 10863

#Unit 10. Ecological Principles

According to the ____________ principle, two species with identical requirements for existence cannot coexist indefinitely