The innermost whorl of a flower typically consists of one or more
a. petals.
b. carpels.
c. stamens.
d. receptacles.
e. sepals.
B
Biology & Microbiology
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Isoniazid is a narrow-spectrum antibiotic that
A. is one of the few drugs effective against Mycobacterium tuberculosis. B. is one of the few drugs effective against systemic fungal infections. C. is not useful as a chemotherapeutic agent. D. None of the choices are correct.
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________ produce 40 to 50 percent of the organic carbon in the ocean.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Organisms that use bioluminescence to attract prey are the:
a. hatchetfish. b. anglerfish. c. stomiatoid fish d. a and b e. b and c
Biology & Microbiology
__________ regulates the maturation of the mammary glands, and then oxytocin causes __________. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology