Which compound in fertilizer do farmers use to inhibit the production of easily leached nitrogen compounds?

A) anhydrous ammonia
B) carbonate
C) nitrapyrin
D) nitrate


Answer: C

Biology & Microbiology

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The idea that evolution proceeds in small, incremental changes over many generations is called

A. temporal equilibrium. B. catastrophism. C. punctuated equilibrium. D. temporal isolation. E. gradualism.

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A growth ring is composed of xylem. Indicate whether the statement is true or false

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Trichomonas vaginalis is a protozoan that feeds on white blood cells and bacteria living on the cells lining the female human vagina, thereby creating a common sexually transmitted disease often known as "trich

" The feeding mechanism of this protozoan makes it a ________. A) parasite B) autotroph C) producer D) mixotroph

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How will E. coli appear if the mordant is not applied?

A. colorless B. gram-variable C. gram-positive D. gram-negative

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