Oligochaeta.
No, it doesn't have six legs or more so it can't possibly be an insect.
No, an earthworm is not a chordate because it has a nerve cord that does not run down the back.
Setae on an earthworm (an annelid) point backwards to add traction as it moves, especially if it is moving up soil or something. Think of it as hooks, essentially a source of friction, for the generally smooth worm as it moves using peristaltic motion.
The annelids are segmented worms. Although some annelids have appendages and primitive sight organs (photo-reactive pigment spots), earthworms do not. Earthworms do, however, have the typical annelid neural ganglia, and the annelid circulatory system, including the aortic arches that function as the worm's heart. And, of course, earthworms are segmented.
annelid- earthworm
yes uit is
Oligochaeta.
the answer is b earthworm
Which of the following associations is incorrectannelid-earthworm............took the test got a 100
segmented worms
an annelid is basically an earthworm that lives in a marine environment, you can read more about it at http://en.wikipedia.org/wiki/Annelid
No, it doesn't have six legs or more so it can't possibly be an insect.
An example of an annelid animal is the earthworm. Leeches and ragworms are also examples of an annelid animal, which is a segmented worm.
earthworm
no. the roundworm would a nematode. an earthworm is part of the annelid family, because it is a segmented worm.
body segmentation