Nitrogen is released into the atmosphere by:
a. nitrogen fixation
b. denitrification
c. nitrification
d. ammonification
e. decomposition
b
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An animal’s capacity to conserve water and to
concentrate solutes for excretion in the urine is greater in a kidney with longer a. Bowman’s capsules b. loops of Henle c. proximal tubules d. ureters e. afferent arterioles
The ____________________ takes up and releases calcium during muscle contraction and relaxation. Fill in the blank(s) with the appropriate word(s)
In ________ mimicry, unprotected species resemble others that are distasteful.
A. competitive B. aposematic C. Müllerian D. Batesian
Which of the following pairs of industrial microbial products and their uses is MISMATCHED?
A. streptokinase; dissolving blood clots B. indigo; cloth dye C. citric acid; antioxidant in food D. gluconic acid; release of cellulose from flax to make linen E. phenylalanine; the sweetener aspartame