Red blood cells exchange carbon dioxide for oxygen
Answer:
An experimental group, also known as a treatment group, receives the treatment whose effect researchers wish to study, whereas a control group does not. They should be identical in all other ways.
Thanks i learnt something new
<span>Axiológico es todo lo que se refiere a un concepto de valor o que constituye una axiología, es decir, los valores predominantes en una determinada sociedad.</span>
The answer is D. Transports fluids throughout the plant.:)<span>
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