A single steroid hormone can cause different effects in different cells by
A) binding to different receptors.
B) acting on different organelles.
C) activating different second messengers.
D) activating different enzymes.
Answer: A
Biology & Microbiology
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For a healthy adult, which compartment contains the most fluid?
a. extracellular b. plasma c. interstitial d. intracellular e. pericardial
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Enzymes work by___
Fill in the blank(s) with the appropriate word(s).
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The bones and cartilage in animals serve the same function as ________ in plants.
A. wood B. leaves C. phloem D. xylem E. capillaries
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