Members of the phyla Ectoprocta, Brachipoda, and Phoronida all possess a lophophore, which is

a. a cluster of pores along the aboral surface, used for expelling wastes from the digestive
tract.
b. a hard shell made of calcium carbonate.
c. an outpocket of the digestive tract, where metabolic wastes are processed before emptying
into the digestive tract for expulsion.
d. a circular fold with one or two rows of hollow, ciliated tentacles.
e. an extra body cavity surrounding the digestive tract filled with muscles used for
locomotion.


D

Biology & Microbiology

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(a) oogonia. (b) gametangia. (c) antheridia. (d) zygotes.

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Patients with Creutzfeldt-Jacob disease live ________ post diagnosis.

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