Which of the following types of muscles are striated?
A. skeletal and cardiac
B. triceps and biceps only
C. skeletal and smooth
D. skeletal, smooth, and cardiac
E. cardiac only
Answer: A
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Smooth muscle cells in the airways relax while those in the blood vessels contract in response to the hormone epinephrine. What would you expect to be different in these two types of cells exposed to epinephrine?
A. Types of proteins expressed. B. Presence of epinephrine receptors. C. Exposure to epinephrine released by neighboring cells. D. Rate of metabolism. E. Activation of protein kinases.
Some bacteria can form resting structures called ___________ that can withstand extremes in temperature, moisture, and radiation
a. prions b. symbionts c. capsids d. viroids e. endospores
The most common mode of reproduction in bacteria is:
a. binary fission. b. transformation. c. transduction. d. conjugation. e. mitosis.
Following successful completion of a phase III trial for a particular drug, a biotechnology company would apply for a(an) ________ to receive approval to sell the drug
A) IND B) DNA C) NDA D) patent E) copyright