Worms are invertebrate animals with bilateral symmetry. Worms have a definite anterior (head) end and a posterior (tail) end.
Does a worm have a head and tail?
Though it may not seem like it, earthworms have a distinctive head and tail. The head of a worm is always located on the end closest to the swollen band, called the clitellum, that encircles the animal. If an earthworm is split in two, it will not become two new worms.
Do worms have two heads?
No, but if a worm is cut in two it will not become two worms. The head will survive and regenerate its tail.
What are three characteristics of roundworms?
SummaryRoundworms make up the phylum Nematoda.Roundworms have a pseudocoelom and hydrostatic skeleton. Their body is covered with tough cuticle.Free-living roundworms are found mainly in freshwater habitats.Parasitic roundworms have a variety of hosts, including humans.11.7: Roundworms - Biology LibreTexts
How are flatworms and roundworms different from one another?
The main difference between flatworms and roundworms is that flatworms consist of a dorso-ventrally flattened body whereas roundworms consist of a cylindrical body tapered to a fine point at each end. Both roundworms and tapeworms are triploblastic animals with bilateral symmetry.
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