Which of the following statements describes mycorrhizae?

A. A mycorrhiza is a mutualistic relationship between fungi and the roots of most plants.
B. A mycorrhiza is a parasitic relationship between bacteria and the roots of most plants.
C. A mycorrhiza is a mutualistic relationship between bacteria and the roots of most plants.
D. None of these statements describes a mycorrhiza.


Answer: A

Biology & Microbiology

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Which of the following is a virus with an icosahedral head, a capsid that contains primarily three proteins, a connecting neck with a collar and long whiskers, a long tail and a complex base plate?

A. influenza virus B. tuberculosis C. measles virus D. HIV E. T4 bacteriophage

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The broad band of loose connective tissue beneath the mucosa that contains blood vessels, lymph, and nerves is called the

A. muscularis. B. submucosa. C. mucosa. D. serosa. E. diverticulosis.

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Although sexual reproduction has a higher metabolic cost than asexual reproduction, many organisms use it. Why is it adaptive?

What will be an ideal response?

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A plant performing photosynthesis will produce and consume .

A. oxygen; carbon dioxide B. oxygen; water C. carbon dioxide; oxygen D. carbon dioxide; water E. water; carbon dioxide

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