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Answered

Which of these is not a response to internal stimuli?

A. wearing sunglasses to to protect eyes from UV rays

B. breathing hard when exercising because of a drop in oxygen levels

C. eating when hungry

D. drinking when thirsty

Answer :

Answer:

A. wearing sunglasses to to protect eyes from UV rays

Explanation:

Your eyes are outside of your body, meaning external. All the other choices deal with internal organs.

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