Which of the following is an immature fern leaf?

a) petiole
b) frondule
c) featherhead
d) fiddlehead
e) sorus


Answer: d) fiddlehead

Biology & Microbiology

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The macromolecules responsible for bacterial adherence that are NOT covalently attached to bacteria are collectively called

A) lipid A. B) biofilms. C) capsules. D) glycocalyx.

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Describe the major roles of fungi that affect humans and their environment

What will be an ideal response?

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Respiration describes the exchange of gases between your blood and the air. Cellular respiration ________

A) produces ATP B) produces oxygen C) produces glucose D) uses carbon dioxide

Biology & Microbiology

In bacteria, the small, circular pieces of DNA that are located outside the chromosome are called

A) sex pili. B) plasmids. C) bacteriophages. D) flagella. E) endospores.

Biology & Microbiology