A fish circulatory system is indicated by
a. A.
b. B.
c. C.
d. both A and B.
e. none of these.
Answer: a
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Drugs, such as cocaine and nicotine, mimic the action of neurotransmitters
a. True b. False Indicate whether the statement is true or false
The minimum level of depolarization required to initiate an action potential in an excitable cell is called the ____
potential.
a. electrical b. refractory c. membrane d. resting e. threshold
Although penicillin inhibits peptidoglycan synthesis, bacterial cells will continue to grow normally in the presence of penicillin in a(n) ________ environment.
A. nonpolar B. isotonic C. hypotonic D. hypertonic
Gametetogenesis (gamete formation) is
a. the result of the process of mitosis. b. the pairing of homologous chromosomes. c. the formation of sex cells. d. the fusion of gametes. e. a process that occurs only in asexually reproducing forms.