The reason that some individual hormones have so many different effects is that
A) they influence gene transcription.
B) they trigger a second messenger system that produces a cascade effect.
C) there are a great many different cells in different tissues that have specific receptors for the hormone.
D) the hormone is carried throughout the body, and only a small amount is needed to produce its effect.
E) all of these are true.
Correct Answer:
Verified
Q1: Target cells
A) are found only in specific
Q3: Steroid hormones
A)are proteins.
B)include testosterone, estrogens, and cortisol.
C)never
Q4: The word "hormone" comes from the Greek
Q5: Estrogens from birth control pills
A)are excreted in
Q6: Signaling molecules in animals are
A)neurotransmitters.
B)hormones.
C)pheromones.
D)local signaling molecules.
E)all
Q9: Signaling molecules act to adjust _ in
Q11: Hormones are distributed throughout the body by
Q11: Which statement is false about prostaglandins?
A)They are
Q12: Which glands secrete pheromones?
A)exocrine
B)ductless
C)mammary
D)endocrine
E)digestive
Q13: Which of these is false regarding atrazine?
A)It
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