The filtration step in the formation of urine for animals sorts materials only by
A. overall size with cells and proteins usually being kept out of the filtrate.
B. whether they are charged or not.
C. whether the substance in question is a waste product or not.
D. whether they contain nitrogen or not.
E. the hydration state of the body.
A. overall size with cells and proteins usually being kept out of the filtrate.
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The virus repressor protein
A) controls the prophage's lytic genes but not the incoming genomes of the same virus. B) does not control the prophage's lytic genes but does control the incoming genomes of the same virus. C) controls both the lytic genes on the prophage and prevents an incoming virus of the same type. D) has different actions in different situations.
The spread of pathogens through the blood and lymph systems that results in a bloodborne systemic infection is called
A) bacteremia. B) cancer. C) pathogenesis. D) septicemia.
Argon has 18 protons. How many electrons are
in its third energy level? a. 2 b. 4 c. 6 d. 8 e. 10
Which of the following foods would have the most fiber?
a. Kidney beans b. English muffins made with enriched flour c. Orange juice d. Corn flakes