Which substance usually undergoes tubular secretion?

a. salts
b. water
c. glucose
d. H+
e. urea


ANSWER: d

Biology & Microbiology

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You are working on a forensics team and collect some cells from a crime scene. The cells are angular, rigid, and have a cell wall made up of cellulose. This sample most likely came from a(n)

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Which of the following is true regarding primary growth in a plant?

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