Polyplacophora, Gastropoda, Bivalvia, and Cephalopoda are all lineages within the phylum ____

a. Rotifera
b. Mollusca
c. Platyhelminthes
d. Annelida
e. Nemertea


ANSWER: b

Biology & Microbiology

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Kidneys return most of the water and small solutes back to blood by way of _____

a. glomerular filtration b. tubular reabsorption c. tubular secretion d. both glomerular filtration and tubular reabsorption

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A key role of the atrioventricular node is to

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The nephridial organs of flatworms are called metanephridia

____________________ Indicate whether the statement is true or false.

Biology & Microbiology