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
You might also like to view...
What is the sex of the individual whose karyotype is pictured?
a. Male
b. Female
Specifically, female sex organs are known as
(a) oogonia. (b) gametangia. (c) antheridia. (d) zygotes.
Patients with Creutzfeldt-Jacob disease live ________ post diagnosis.
A. 10 to 20 years B. greater than 25 years C. 5 to 10 years D. less than 1 year E. 1 to 5 years
Which of the following are two names for classes of hormones?
A) Lipophilic and lipotropic B) Protein and steroid C) Transcriptional and translational D) Ionotropic and metabotropic