A decline in pH causes the kidneys to increase reabsorption of which substance?

A. Bicarbonate
B. Hydrogen ions
C. Carbon dioxide
D. Carbonic acid
E. Phosphates


Answer: A

Biology & Microbiology

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Certain pathogens that infect the ____are discharged out of the body in the urine that these organs create

Fill in the blank(s) with the appropriate word(s).

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A neuron at rest has a charge difference across its cell membrane, with the interior of the cell negative relative to the exterior. This difference in charge across the plasma membrane is referred to as ________ potential

A) action B) resting C) graded D) refractory E) depolarization

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Which muscle cells are designed for endurance?

A) hemoglobin B) slow-twitch cells C) fast-twitch cells D) myoglobin

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Ruminant animals have symbiotic fungi that

A. digest cellulose and lignin. B. produce natural antibiotics. C. infect milk-producing glands, fermenting the milk. D. produce toxins in muscle tissue.

Biology & Microbiology