The following cell structures can also be found in a typical animal eukaryotic cell: 1  Centrioles - help to organize the assembly of microtubules.â. 2  Chromosomes - house cellular DNA.â. 3  Cilia and Flagella - aid in cellular locomotion.â. 4  Cell Membrane - protects the integrity of the interior of the cell.â.
The rest of it is in its burrow. Earthworms are hermaphroditic, meaning they can all lay eggs after they mate. Earthworms lay coccoons which have an egg inside. Once an earthworm has hatched, it can live up to about three years.Earthworms have many predators, including: ants, mites, centipedes, earwigs, nematodes, fly larvae, termites, springtails, sowbugs, snails, slugs, spiders, birds, rats, mice, moles, toads, turtles, and snakes.ost native earthworms are thought to be long gone. Earthworms' bodies are soft and long with a cylinder shape. Nightcrawlers, the largest, can grow up to eight inches long. Their coloration is brownish-red. Earthworms live in soil in meadows, woods, stream banks, and lawns. They burrow up to six feet deep.
The bodies of most oligochaetes (earthworms) are divided externally and internally into well-defined segments. Internally, these segments are divided by membranous partitions. Except for the most anterior and posterior segments, all segments are essentially alike. Earthworms burrow through the soil, feeding on decaying leaves and animal debris. As earthworms move through the soil, they both enrich and loosen the soil. It is for this reason that earthworms are valued by gardeners. An acre of good garden soil may contain as many as 50,000 individuals. External Anatomy and Locomotion of the living earthworm Observe the external features of the earthworm. Notice that the body is made up of a number of segments.