Acid-base buffer systems minimize pH changes by
A) increasing breathing rate.
B) converting weak acids to strong acids.
C) promoting the excretion of hydrogen ions.
D) converting strong acids to weak acids.
D
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During mitosis, what is the function of the mitotic spindle?
A. It separates the chromatids at the centromere. B. It separates the cytoplasm to the new daughter cells. C. It separates the two halves of the DNA double helix. D. It re-forms the nuclear envelope. E. It pulls together the replicated chromosomal strands.
What is the blood-testis barrier and how does it function?
What will be an ideal response?
Negative feedback inhibition occurs when ________.
A. thyroid hormone (TH) targets the anterior pituitary B. thyrotropin-releasing hormone (TRH) causes the anterior pituitary to release thyroid-stimulating hormone (TSH) C. thyroid-stimulating hormone (TSH) targets the thyroid gland D. thyrotropin-releasing hormone (TRH) targets the thyroid gland E. thyrotropin-releasing hormone (TRH) targets the anterior pituitary
The visceral __________ is the serous membrane covering the external surface of the lungs.
Fill in the blank(s) with the appropriate word(s).