Answer:
Because sometimes, certain chemical reactions can excite/slow down an organism, and the action needs to be reversed to maintain normality.
Answer:
fever or feeling feverish/chills. cough. sore throat. runny or stuffy nose. muscle or body aches. headaches. fatigue and sometimes vomit and diarrhea.
Explanation:
Answer:
Provides cell structure.
Explanation:
The proteins which have amino acids within them provide cell structure.
Answer:
D. rough endoplasmic reticulum
Explanation:
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