A(n) __________ has receptors to which chemical messengers selectively bind or on which they have an effect.
A) pheromone
B) hormone
C) endocrine gland
D) mitogen
E) target cell
Correct Answer:
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Q3: In fishes,the _ are the most important
Q4: The study of endocrine glands and their
Q5: In birds,the hormone _ leads to the
Q6: Mammary,salivary,and sweat glands are all examples of
Q7: The adrenal medulla
A)contains neurosecretory cells controlled by
Q9: Hormonal regulation in higher vertebrates is based
Q10: A substance that stimulates the excretion of
Q11: One of the hormones stored,and then released
Q12: The receptor mechanism used by steroid hormones
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