Nitrogen is released into the atmosphere by:

a. nitrogen fixation
b. denitrification
c. nitrification
d. ammonification
e. decomposition


b

Biology & Microbiology

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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

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The ____________________ takes up and releases calcium during muscle contraction and relaxation. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology

In ________ mimicry, unprotected species resemble others that are distasteful.

A. competitive B. aposematic C. Müllerian D. Batesian

Biology & Microbiology

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

Biology & Microbiology