Which animal phylum has an asymmetrical body plan?
a. Cnidaria
b. Porifera
c. Annelida
d. Ctenophora
e. Echinodermata
b
Biology & Microbiology
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An example of an irreversible inhibitor is
A) a competitive inhibitor. B) acetylcholinesterase. C) a noncompetitive inhibitor. D) penicillin. E) isoleucine.
Biology & Microbiology
In a scientific experiment, the group that does not receive the experimental treatment is called the placebo group
a. true b. false
Biology & Microbiology
Down syndrome involves trisomy ____.
A. 3 B. 5 C. 15 D. 19 E. 21
Biology & Microbiology
Which of the following may result from eating shellfish?
A. botulism B. norovirus infection C. polio D. salmonellosis E. paralysis
Biology & Microbiology