Chemical messengers that are produced by the endocrine system and circulate in the bloodstream are
A) enzymes.
B) antibodies.
C) hormones.
D) neurotransmitters.
E) neuropeptides.
Correct Answer:
Verified
Q8: The receptors on the surfaces of cell
Q9: The molecule or molecules that interacts with
Q10: Which statement about hormones is not correct?
A)Hormones
Q11: Which type of hormone actually enters the
Q12: Hormones regulate biochemical reactions by
A)performing the same
Q14: The major chemical structures of hormones include
A)polysaccharides,esters,and
Q15: The function of a receptor is to
A)receive
Q16: A chemical messenger that travels to a
Q17: The two systems responsible for regulating the
Q18: Hormones are produced in the _ system.
A)digestive
B)endocrine
C)excretory
D)nervous
E)circulatory
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