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Caffeine acts as an agonist and an antagonist in the human body.

a. What biochemical is it acting as an agonist toward?
b. What biochemical is it acting as an antagonist toward?

User Ajoy Sinha
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2 Answers

3 votes
Are these questions are options
User Fakhar Ahmad Rasul
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6 votes
I believe the answer is a
User Gabriel Oliveira
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