Which hold the least carbon?
a. soils c. seawater
b. the air d. rocks
B
Biology & Microbiology
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Unlike processing of the primary transcript, RNA editing occurs at the level of mRNA
A. true B. false
Biology & Microbiology
The three main forms of nitrogenous wastes found in animals are
A. ammonia, urea, and uric acid. B. ammonia, urea, and uracil. C. ammonia, urea, and amino acids. D. uracil, urea, and uric acid. E. amino acids, uracil, and uric acid.
Biology & Microbiology
Which term refers to the movement of some molecules and ions out of the excretory system tubules and back into body fluids?
a. reabsorption b. release c. filtration d. secretion
Biology & Microbiology
The principal force driving movement in diffusion is _______.
a) membrane surface area b) concentration gradient c) temperature d) particle size
Biology & Microbiology