Hormones are defined as
A. chemical messengers released into the blood.
B. chemical messengers located inside of muscle cells.
C. chemical messengers located within the central nervous system.
D. None of these answers is correct
Answer: A
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The combining form that means hard, horny is ________.
Fill in the blank(s) with the appropriate word(s).
What is the name for substances that cause cancer?
A) initiators B) oncogenes C) mutagens D) carcinogens
The Renaissance
A. unlike the Middle Ages, did not produce philosophers who had a lasting impact. B. produced philosophers who attempted to show that classical philosophies went hand in hand with the teachings of the church. C. produced philosophers who inadvertently paved the way for the philosophical undermining of the church. D. was characterized by Scholasticism, which was the most studied philosophy, and attempted to reconcile the theology of the Christian church with rational thought. E. All of the answers are correct.
What causes the pumping action (influx and outflux of water containing nutrients and waste) of the intervertebral discs in adults?
A. blood supply B. neural activity C. body motion D. both blood supply and body motion E. all of these answers are correct