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Nature & Animals

Which effect results when a basking lizard's body temperature nears the maximum tolerance?

A) cutaneous blood vessels dilation
B)Increased metabolic rate
C)Rapid muscle contractions
D)Decreased cellular respiration

💡 Explanation

When a lizard's body temperature nears its maximum tolerance, vasodilation occurs because smooth muscles surrounding cutaneous blood vessels relax, increasing blood flow to the skin, promoting heat dissipation. Therefore cutaneous vasodilation occurs, rather than increased metabolism, contractions, or decreased respiration that involve different regulatory pathways.

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