Chitin is a chemical component of the cell walls of ________.

A. bacteria
B. fungi
C. algae
D. helminths
E. protozoa


Answer: B

Biology & Microbiology

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In a mycorrhizal relationship, the fungal component can assist in providing phosphorus and water to the plant. The plant in turn provides the fungus with ________.

A. metal cofactors B. carbon dioxide C. nitrogen D. organic carbon

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The caplike structure that covers the head of the sperm and releases enzymes that will help the sperm penetrate the egg is the

A. epididymis. B. vas deferens. C. acrosome. D. mitochondrion. E. nucleus.

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Escherichia coli O157:H7 is primarily associated with which of the following foods?

A) ground beef B) dairy products C) eggs D) fomites E) pork

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The protozoal disease known as (cutaneous/mucocutaneous/visceral) leishmaniasis is potentially fatal.

Fill in the blank(s) with the appropriate word(s).

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