Roundworms are smooth, thin, tube-shaped worms that are _______ at both ends. Roundworms are the _ common worms on the earth. Some roundworms reproduce inside their host’s _______.

They have an open digestive system with a mouth opening that connects straight to their anus. They are the most common animal on the planet and include earthworms. A lot are parasitic and reproduce and live in a hosts intestines. their eggs and sometimes the worm themselves can be passed through feces. Then another animal may eat it or someone steps in it and they become infected

Roundworms are smooth, thin, tube-shaped worms that are _____________ at both ends. Roundworms are the _____________ common worms on the earth. Some roundworms reproduce inside their host’s _____________.

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Roundworms are smooth, thin, tube-shaped worms that are _______ at both ends. Roundworms are the _ common worms on the earth. Some roundworms reproduce inside their host’s _______.