The pigment that gives color to diatoms is

a. phycobilin.
b. chlorophyll.
c. algin.
d. fucoxanthin.
e. carrageenan.


Answer: d

Biology & Microbiology

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Susan ran a beef slaughterhouse. At the end of a very long day in which many cattle were processed, she found that there were several pounds of thyroid gland, unsalable as such. Therefore, she ordered the glands be ground into hamburger meat

If someone were to buy, cook, and eat all of that thyroid-burger, what serious outcome would you predict for that customer?

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Which of the following examples is incorrectly paired?

a. schooling fish?aggregated distribution b. nesting seabirds?random dispersion c. grove of aspen?clumped dispersion d. flour beetle larvae?random dispersion e. adult sand pine?uniform dispersion

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All known halophiles are archaea.

a. true b. false

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Which animals use positive pressure breathing to ventilate their lungs?

a. reptiles b. birds c. dogs d. frogs

Biology & Microbiology