Ammonia, uric acid, and urea are products of the breakdown of ________ that accumulate because of protein digestion
Fill in the blank(s) with correct word
amino acids
Biology & Microbiology
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The most common marine annelids are:
a. polychaetes. b. roundworms. c. earthworms. d. leeches. e. ribbon worms.
Biology & Microbiology
In eared seals, the main propulsive force for swimming is produced by the:
a. forelimbs. b. hindlimbs. c. undulations of the body. d. tail. e. caudal fin.
Biology & Microbiology
Except for ________, our cells cannot make vitamins. We must get them from our diet
Fill in the blank(s) with correct word
Biology & Microbiology
Oxygen-poor blood is carried from the heart of a mammal to the lungs via the
A) pulmonary arteries. B) pulmonary veins. C) superior vena cava. D) inferior vena cava.
Biology & Microbiology