____ convert nitrogen gas to nitrogen that plants can use.
A. Decomposers
B. Nitrogen-fixing bacteria
C. Nitrifying bacteria
D. Denitrifying bacteria
B. Nitrogen-fixing bacteria
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Which of the following structural features of epithelial tissues are related to the function of these cells? Epithelial cells _____
A) have polarity B) have a long life span C) have low rates of mitosis and cytokinesis D) are loosely packed
Of the following organisms, which has a unique developmental life cycle including a replicative form, the reticulate body (RB), and an extracellular, metabolically inert, infective form, the ele-mentary body (EB)?
a. Rickettsia b. Chlamydia c. Ehrlichia d. Coxiella
Discuss the reasons why cloning transgenic animals may be preferable over traditional breeding. What are some of the
problems with animal cloning?
What will be an ideal response?The plural for genus is
a. genus. b. geni. c. genera. d. gena. e. genae.