Blood with substances from the small intestine
goes through the ___ before returning to the
heart.
a. liver
b. gallbladder
c. pancreas
d. large intestine
e. spleen
A
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Patterns of species change and succession are one focus of
A. behavioral ecology. B. environmental science. C. biological control. D. community ecology. E. physiological ecology.
Which organisms are NOT eukaryotes?
a. fungi b. bacteria c. plants d. animals e. protists
Renin is released by ________ cells of the ________.
A) principal : afferent arteriole B) granular : afferent arteriole C) granular : distal tubule D) principal : distal tubule E) intercalated : afferent arteriole
Receptor-mediated endocytosis brings in specific material by engulfing it in vesicles. What factors, either directly or indirectly, are related to this process? Choose all that apply.
A. A clathrin coat is present. B. It helps to increase membrane fluidity by helping to transport cholesterol into the cell. C. It is an active process. D. It is a passive process. E. It uses carrier proteins.