5 мар. 2021 г. · Roundworms make up the phylum Nematoda. Roundworms have a pseudocoelom and hydrostatic skeleton. Their body is covered with tough cuticle. Free- .Roundworms · Structure and Function of.
Do roundworms have a skeletal system?
Roundworms have a pseudocoelom and hydrostatic skeleton. Their body is covered with tough cuticle.
Why do roundworms have a round body?
Roundworms range in length from less than 1 millimeter to over 7 meters (23 feet) in length. As their name suggests, they have a round body. This is because they have a pseudocoelom.
What makes roundworms unique?
Features of Roundworms Unlike the flatworms, the roundworms have a body cavity with internal organs. A roundworm has a complete digestive system, which includes both a mouth and an anus. This is a significant difference from the incomplete digestive system of flatworms.
Do roundworms have bones?
No, worms are invertebrates, they have no bones.
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