Pollination in most cycads usually occurs when ____ transfer pollen from male plants to the developing gametophyte

on female plants.



a. beetles
b. mosquitoes
c. honeybees
d. butterflies
e. ants


ANSWER: a

Biology & Microbiology

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As N approaches K for a certain population, which of the following is predicted by the logistic equation?

A) The growth rate will not change. B) The growth rate will approach zero. C) The population will show an Allee effect. D) The population will increase exponentially. E) The carrying capacity of the environment will increase.

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The 'clonal selection hypothesis' explains the proliferation and maturation of lymphocytes involved in the adaptive immunity

a. true b. false

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Which tissue contains cells specialized for the storage of fat?

Areolar Adipose Cartilage Dense connective

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Each infectious droplet expelled during sneezing is approximately ________ µm in diameter and may contain one or several infectious microorganisms

a. 100 b. 100 c. 10 d. 1

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