Tapeworms can grow up to several feet long. Their bodies are set up in repeating units called proglottids that increase in size from the anterieor to the poterior.

Scaveng for bits of decaying plants and animals. Also eat small things like Protazoas. They can also eat nutrients their “host” organism.

Fish Various Birds

Tapeworms are hermaphrodies The can reproduce sexually and asexually. The lay their eggs inside of a host.

Some live in other organisms as parasites. Most live underwater.

Yes, they have a negative affect on other organisms. They are parasites. They are very harmful and can cause disease and possibly death.