NEET BIOLOGY

Detailed explanation-1: -The phylum Nematoda, also known as the roundworms, is the second largest phylum in the animal kingdom, encompassing up to 500, 000 species. Members of Nematoda are elongated, with bilaterally symmetric bodies that contain an intestinal system and a large body cavity. Many roundworm species are free living in nature.

Detailed explanation-2: -nematode, also called roundworm, any worm of the phylum Nematoda. Nematodes are among the most abundant animals on Earth.

Detailed explanation-3: -All nematode species are endoparasitic. They are called roundworms because they appear circular in cross-section. It includes Ascaris (Round worm) and Wuchereria (Filarial worms), Enterobius (Pin worm), Ancylostoma (Hook worm).

Detailed explanation-4: -Ascaris lumbricoides (human roundworm) and Ascaris suum (pig roundworm) are hard to tell apart. It is unknown how many people worldwide are infected with Ascaris suum.

Detailed explanation-5: -The nematodes (/ˈnɛmətoʊdz/ NEM-ə-tohdz or NEEM-Greek: ; Latin: Nematoda) or roundworms constitute the phylum Nematoda (also called Nemathelminthes), with plant-parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments.