This gas makes up approximately 1/5th of ordinary air and is used to release energy from food substances.
A) oxygen
B) carbon dioxide
C) hydrogen
D) nitrogen
E) helium
Correct Answer:
Verified
Q3: Requirements to maintain the life of humans
Q4: Metabolism is defined as
A) any individual process
Q5: An investigator who conducts an experiment to
Q6: Of the items listed,which is NOT required
Q7: Homeostasis refers to
A) changing external conditions.
B) stable
Q9: Which term refers specifically to the structures
Q10: Which of the following is not considered
Q11: A drop in room temperature to 65oF
Q12: Which of the following lists illustrates the
Q13: Water is
A) the most abundant chemical in
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