Lab Test 2

One of the major distinguishing characteristics of molluscs is

the mantle

Sponges are atypical animals because they

lack definite tissues

Flatworms

have tissues derived from all three primary germ layers

Rotifers have a body cavity that is

called a pseudocoelom

Cnidarians capture their prey with the use of

nematocysts

Earthworms exhibit segmentation, defined as the

division of the body into a series of similar segments

Which of the following is a bivalve type of mollusc?

clam

The copulatory organ of the earthworm is the

Clitellum