The main difference between Nematoda and Annelida is that Nematoda has a cylindrical body with tapered ends whereas Annelida has a cylindrical body, which is segmented. Therefore, Nematoda is called roundworms while Annelida is called segmented worms. 26 июн. 2018 г.
How are nematodes and earthworms different?
Most worms have two bands of muscles: longitudinal muscles that run the length of the body and circular muscles that form circular bands around the body. Unlike other worms that have two bands of muscles, nematodes only have longitudinal muscles.
Is earthworm a nematode?
Invertebrate animals commonly called "worms" include annelids (earthworms and marine polychaete or bristle worms), nematodes (roundworms), platyhelminthes (flatworms), marine nemertean worms ("bootlace worms"), marine Chaetognatha (arrow worms), priapulid worms, and insect larvae such as grubs and maggots.
What are the differences between nematodes and annelids?
Nematodes have an unsegmented body whereas annelids are metamerically segmented. Nematodes are pseudocoelomate, whereas annelids have a true coelom. Nematodes are dioecious, i.e. sexes are separate. Annelids are mostly hermaphrodites and free-living.
What is the difference between earthworms and roundworms?
An earthworm has a full digestive system and its diet consists of dirt and plant matter. A roundworm has a definite digestive system and its diet consists of other animals and plants.
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