AP BIOLOGY

Detailed explanation-1: -Nematodes are multicellular organisms.

Detailed explanation-2: -Nematodes are the most abundant and ubiquitous multicellular organisms on earth, with an estimated 500, 000 to 1, 000, 000 species.

Detailed explanation-3: -Nematodes are structurally simple organisms. Adult nematodes are comprised of approximately 1, 000 somatic cells, and potentially hundreds of cells associated with the reproductive system .

Detailed explanation-4: -Worms are multicellular, eukaryotic, invertebrate animals. Most are macroscopic, but have microscopic life stages. They are complex organisms with organs and organ systems. In addition, they usually have complex life-cycles which may include different larval and cyst stages, and multiple hosts.

Detailed explanation-5: -Like many other organisms in kingdom Animalia (also referred to as metazoa) nematodes are eukaryotic, multicellular organisms that obtain nutrients from organic sources. Nematodes/roundworms make up the phylum Nematoda.