round worms are round and flat worms are flat!
Round worms are nematoda, which are, mostly, parasitic worms. A round worm is also called a Guinea worm.
The scientific name for round worms is "nematodes."
Round worms, segmented worms, and flat worms
flat worms,segmented worms, and round worms.
No
Rotifers are made of what structures
1. Round Worms 2. Flat Worms 3. Segmented Worms
Round Worms.
It's belong to the phylum: NEMATODA . some examples for round worms : _Ascrais _Necator americans .
(it would be false to say that all flatworms are parasitic--the idiot that wrote that wasn't so smart, so I had to change that-- because the PLANARIAN-for example, is flatworm and that is a harmless little critter) ~round worms are ROUND ~flat worms are FLAT ~Round worms have 2 body openings (mouth & anus) *random fact: 1/2 of all roundworms are PARASITIC, and 50 species affect humans**
There are zero invertebrates that have backbones. There are ten phyla of invertebrates and one that contains invertebrates as well as vertebrates.Arthropoda (spiders, insects, lobsters etc.)Mollusca (Octopus, snails, clams, etc.)Porifera (Sponges)Coelenterata (jelly fish, corals, hydra, etc.)Playhelminthes (flat worms)Nematoda (round worms)Annelida (segmented worms)Echinodermata (sea stars, sea urchins, sea cucumbers etc.)Rotifera (Rotifers)Onchyohora (walking worms)Chordata (not all chordates are invertebrates)