Question

Compare the motion of the vinegar eels that you observed to the motion that you saw in the earthworms.

What is the reason for the difference in the way Nematoda and Annelida like earthworms move?

a) They both have longitudinal muscles so the differences are in the environment they live in
b) no differences they move the same way
c) Nematoda only have longitudinal muscles, while Annelida earthworms have both longitudinal and circular muscles

Answer 1

Nematodes like vinegar eels have longitudinal muscles, while earthworms have both longitudinal and circular muscles.

Earthworms move using peristalsis, while vinegar eels move by contracting their longitudinal muscles.

Step-by-step explanation:

The motion of vinegar eels (nematodes) and earthworms (annelids) differ due to the differences in their muscle types.

Nematodes like vinegar eels only have longitudinal muscles, while earthworms have both longitudinal and circular muscles.

Earthworms move using peristalsis, which is the wave-like contraction of their longitudinal muscles, while vinegar eels move by contracting their longitudinal muscles along the length of their body.