What do we call molecules involved in long-distance signaling?
A. kinases
B. transcription factors
C. hormones
D. response elements
E. receptors
C. hormones
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Prokaryotic cell walls are constructed out of ______________
a. peptidoglycans b. cellulose c. gelatin d. starch
Syncope is probably NOT caused by a life-threatening dysrhythmia if it occurs:
A) immediately after a person is startled. B) following exercise or heavy exertion. C) in a person whose cousin has syncope. D) in conjunction with chest pain or pressure.
A researcher in a lab finds a microscopic organism that is a producer. The organisms are found in
extreme environments (i.e., hot springs). The researcher has identified an organism belonging to the domain ____.
a. Bacteria b. Archaea c. Eukarya d. Animalia e. Amoeba
______ ER does NOT have ribosomes attatched.
Fill in the blank(s) with the appropriate word(s).