Most monocots have numerous ____ roots arising from the stem
a. adventitious
b. primary
c. fibrous
d. secondary
e. tap
ANSWER: a
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Microorganisms in abscesses often are not killed by antimicrobial agents because
A. the microorganisms stop dividing. B. of the chemical nature of the pus. C. of the lack of blood vessels. D. of the high level of oxygenation. E. the microorganisms stop dividing, of the chemical nature of the pus AND of the lack of blood vessels.
All the following utilize detritus for food except
a. filter-feeders. b. grazers. c. suspension-feeders. d. detritus-feeders.
Which of the following refers to the loss of a portion of a chromosome?
A) inversion B) translocation C) deletion D) duplication E) monosomy
Ecosystems in the United States experience seasonality because:
A) there is a predictable seasonal solar activity cycle. B) the rotation of Earth causes a rhythmic circulation of Earth's atmosphere. C) Earth is closer to the sun in summer and farther away in winter. D) Earth is tilted with respect to the orbit around the sun. E) Earth rotates on it's axis relative to the sun.