Annelids
Annelids have segmented bodies and can be found almost anywhere in the world. Annelids also have well-developed internal organs and bilateral symmetry. Some annelids have bristles for movement called cilia. The body cavity of a annelid is a true coelom, often divided by internal septa. The body possesses 3 seperate sections; a prosomium, a trunk, and a pygidium as well as a mouth and anus.
Annelids reproduce sexually and asexually. When reproducing asexually, annelids split into 2 or more pieces in a process called budding. During sexual reproduction, animals with seperate sexes let sperm and ova into the water from their nephridia and the fertilized eggs then live as plankon. They later sink to the bottom and go through metamorphosis to mature into the full adult form.
Some common examples of annelids are
earthworms
leaches
ragworms
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