PT147.S4.Q1

PrepTest 147 - Section 4 - Question 1

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Cool weather typically weakens muscle power in cold-blooded creatures. ██ ███ ██████ ██████████ █ ████████████ ███████ ███ █████ ██ █████ ███ ██████ ███ ███████ ███ ██████ ████████ ████████████ ██ ███ ███████████ ██████ ████████ ███ █████ ██ █████ ████ █████████ ███ ██████ ███ ██████ ████ ███ ███████ ████ ██ ███ ███████████ ██████

"Surprising" Phenomenon

Why is the chameleon’s tongue extension speed largely unaffected by temperature drops while the weakened muscle power resulting from such drops dramatically slows the chameleon’s tongue retraction speed?

Objective

The right answer will describe a key difference between chameleon tongue retraction and chameleon tongue extension. That difference must explain why tongue retraction speeds decrease dramatically in lower temperatures while tongue extension speeds remain largely unchanged. The answer will likely explain why tongue extension is less impacted than retraction by the muscle weakening chameleons experience in lower temperatures.

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1.

Which one of the following, ██ █████ ████ █████ ██ ███████ ███ ████████ ███████████ ██ ███ ███████████ ██████

a

Most cold-blooded animals ███ ████ ████ ██████ ██ ██████ ███████ ████ ██ ██████ ████████

b

Many cold-blooded animals, █████████ ███ ██████ ██████████ ████ ███████ ████ ███ ██████ █████ █ █████████

c

Veiled chameleons are █████ ██ █ ████ █████ ██ █████████ █████████ ████ ████ ████ ██████████ ██ ███████████ ███ ████ ████ ████████ █████████

d

In the veiled ██████████ ██████ ██████████ ██ ███████ ██ ████████ ███████ ██████ █████████ ██ ██████ ██ ██████ ██████ ██ █ ██████ █████████ ███████

e

Compared with the ███████ ██ ███ ███████ ██ ████ ████████████ ████████ ███ ██████████ ███████ ██ ███ ██████ ███████████ ██████ ███ ████████████ █████████

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