otherwise known as : Phylum nematodes
- one of the most diverse of animals
- hard to distinguish
- slender, worm-like animals, typically less than 2.5 millimetres (0.10 in) long
- microscopic, while free-living species
- often ornamented with ridges, rings, warts, bristles or other distinctive structures.
- head of a nematode is relatively distinctive
- head is radially symmetrical, with sensory bristles and, in many cases, solid head-shields radiating outwards around the mouth
- rest of the body is bilaterally symmetrical
- live in water and soil everywhere except the desert
- few species are parasites of plants and animals
- eat bacteria, fungi, and tiny growths in the soil
- parasite species feed on blood, body fluids, intestinal contents, and mucus in their hosts
- Most species of roundworms have two sexes, but in a few species the worms make both eggs and sperm
Done by: Nur Shamemi
Group 4: Carisa, Su En, Shamemi, Pei Shan
(Group 3, Animalia: Flatworms, Roundworms, Segmented Worms and Mollusca)
The Roundworm, unlike cnidarians or flatworms, it has a digestive system that is like a tube with openings at both ends.
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