In addition to its white coloration, beluga whales possess another unique characteristic which is:

a. the ability to forage in groups

b. the ability to bend its neck.
c. the formation of a tusk
d. the presence of two teeth.


b

Biology & Microbiology

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Helicobacter pylori causes ________.

A. duodenal ulcers B. stomach ulcers C. gastritis D. increased risk for stomach cancer E. All of the choices are correct.

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Concerning species survival, which status is of greatest concern?

a. threatened b. endemic c. critical d. endangered e. serious

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The range of all factors that influence whether a

species can obtain resources essential for survival and reproduction is its a. habitat. b. niche. c. carrying capacity. d. ecosystem. e. community.

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The transcribed and translated region of a gene is the ________ region.

A. promoter B. trailer C. leader D. coding

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