Which of the following can be used to distinguish a nematode worm from an annelid worm?
1) type of body cavity
2) number of muscle layers in the body wall
3) presence of segmentation
4) number of embryonic tissue layers
5) shape of worm in cross-sectional view
A)2 only
B)2 and 3
C)1, 2, and 3
D)1, 2, 3, and 5
E)all five of these

Question

Quizplus · Accepted Answer

Nematodes have a pseudocoelom, annelids have a coelom. Nematodes have a single layer of muscles in the body wall, annelids have multiple layers. Nematodes are not segmented, annelids are segmented.

Which of the Following Can Be Used to Distinguish a Nematode