Multiple Choice
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.
Correct Answer:

Verified
Correct Answer:
Verified
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