Structure and Function of Roundworms As their name suggests, they have a round body. This is because they have a pseudocoelom. This is one way they differ from flatworms. Another way is their complete digestive system. 3 июл. 2019 г.
Why is it called round worm?
Roundworms (also called nematodes) are worms with a long round body.
What are roundworms called?
nematode, also called roundworm, any worm of the phylum Nematoda. Nematodes are among the most abundant animals on Earth.
Do roundworms have a head?
Roundworms are characterized by a simple worm-like structure with a lack of features such as cilia or a well-defined head. They have an internal body cavity, called a pseudocoelom, which looks like a tube within a tube and runs the whole length of their bodies.
Do roundworms have jaws?
Here's another quirk: although their bodies are bilaterally symmetrical, like that of a human, nematode heads are radially symmetrical, like a starfish. Roundworms may have either three or six jaws, often lined with teeth.
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