Which mineral found in horsetails helps protect it from insects?

a. siderite
b. aluminum
c. silica
d. feldspar
e. amethyst


ANSWER: c

Biology & Microbiology

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What is an example of a habitat?

a. predator b. intestinal tract c. parasite d. producer e. decomposer

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Often in complete dominance, the recessive allele codes for a nonfunctional ________

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The MOST prevalent cation of the extracellular fluid is:

A) sodium. B) chloride. C) potassium. D) bicarbonate.

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Evolution on a large scale, or ____ involves speciation, or the splitting of one species into two or more species.

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