Which to these functions of the kidneys are mismatched.

a) excretes metabolic wastes-rids the body of urea
b) maintains the water-salt balance-helps regulate blood pressure
c) maintains the acid-base balance-rids the body or uric acid
d) secretes hormones-secretes erythropoietin
e) all of the choices are correct


Answer: c) maintains the acid-base balance-rids the body or uric acid

Biology & Microbiology

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Which organ releases hormones that assist with the development of the immune system and continues to shrink as an individual matures and ages?

a. thymus b. thyroid c. thalamus d. testes

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If ionizing radiation affects a germ cell then ____

a. no sperm or eggs will be made b. more eggs and sperm than normal will be produced c. sperm and eggs will contain the diploid number of chromosomes d. damage to the DNA will be inherited by an infant e. no problems will arise

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Refer to the accompanying figure. The area of the tryptophan operon labeled as 3 is the:


a. promoter.
b. repressor gene.
c. ribosome.
d. RNA polymerase.
e. operator.

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The brain interprets the ________ of light on the basis of the number and frequency of action potentials it receives from light receptors in the retina

Fill in the blank(s) with correct word

Biology & Microbiology