The organelle within a cell that functions as its brain, regulating its production of protein.
Nutrients and oxygen is the answer because the circulatory system does that work and the other one is from another system
<span>a group of people, usually of similar age, background, and social status, with whom a person associates and who are likely to influence the person's beliefs and behavior.
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Circulatory system.
Gas exchange takes place in the capillaries.
