He got infected with a tapeworm.

He has been infected with a tapeworm before.

Caddisworms play an important role in the river ecosystem.

The giant katydid, with its size and unique shape, stands out from other insects.

Bryozoans are a type of marine life, mainly living on the sea floor.

The velvet worm is a very unique creature, and its ecology is not yet fully understood.

Hookworms are parasites mainly found in tropical regions.

He is studying the insect-like part.

He didn't participate in the summer camp because he doesn't like bugs.

He doesn't participate in summer camps because he dislikes bugs.