Mutations can be

a. random.
b. beneficial.
c. harmful.
d. heritable.
e. all of these


E

Biology & Microbiology

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Humans with mutations in the gene encoding AQP1 (aquaporin-1) that cause the absence of AQP1are

characterized by an inability to ____.

a. concentrate urine despite prolonged thirsting d. control sweating b. control edema e. salivate c. make large volumes of dilute urine

Biology & Microbiology

Plants that show a pattern of stomatal opening and closing that is the reverse of C3 plants are called

A. CAM. B. C4. C. Calvin cycle. D. Temperate.

Biology & Microbiology

Horses and donkeys can breed and produce sterile offspring known as mules. Horses and donkeys remain separate species because of this hybrid sterility, which is:

A. an allopatric barrier to reproduction. B. a sympatric barrier to reproduction. C. a prezygotic barrier to reproduction. D. a postzygotic barrier to reproduction.

Biology & Microbiology

Fish have scales that enable them to live in a water environment. This is an example of

A. metabolism. B. homeostasis. C. cellular organization. D. development. E. adaptation.

Biology & Microbiology