1- They can absorb the nutrients from the hosts.
2-They don't have to spend energy to look for food all the time,they get the food from where they stuck.
i think it is because of their eyes but ask an adult
The parasitic worms do not have to waste energy moving around, trying to find food, if they are eating the host's already digested food.
Parasitic flatworms have to have a host. A free-living one doesn't.
Free-Living
Protists are free living.
oh no. they are most definitely parasitic worms. they can get inside a persons body and live off their food supply in the person's intestines. They can grow quite long too, about 27 or more feet.
free living
Most mollusks are free-living but there are a few that are parasitic.
no
free-living! We don't live on or in other organisms.
free-living! We don't live on or in other organisms.
Organisms can be grouped as free-living or parasitic. A parasite is an organism which lives in or on another organism, from which it obtains its food. Since humans do not do this they are not parasitic, and so must be free-living.
A person will be free of any form of parasitic infestation. The only way they could have a parasite is if they have been colonised and not had medical treatment.
Marine worms are