Members of the ____ flatworm lineage are parasites of vertebrates, characterized by modified heads for attaching to

the intestinal wall of hosts, and a series of reproductive units called proglottids.



a. Trematoda
b. Turbellaria
c. Polychaeta
d. Cestoda
e. Hirudinea


ANSWER: d

Biology & Microbiology

You might also like to view...

The growth response in plants that is related to touch is called

A. gravitropism. B. gravitouchism. C. thigmotropism. D. turning in response to gravity. E. turning away from light.

Biology & Microbiology

Colonic Fermentation

What will be an ideal response?

Biology & Microbiology

Why do tropical rainforests exist in soils that are nutrient-poor?

A) There is a low rate of decomposition, and plants cannot absorb the "undigested" nutrients. B) There is a low rate of decomposition, and plants quickly absorb the nutrients as they are available. C) There is a high rate of decomposition, and plants quickly absorb the nutrients as they are available. D) The plants cannot use the types of nutrients produced by tropical decomposers.

Biology & Microbiology

A survivorship curve in which most individuals die late in life is a type ________ curve.

A. IV B. I C. 0I D. III E. II

Biology & Microbiology