In marine biology, plankton is an important part of the marine ecosystem.

I am majoring in biochemistry at university.

Biotechnology plays a very important role in the medical field.

He is devoted to the study of neoplasms.

My biological clock is disrupted, and I've been having sleepless nights.

This larva takes several weeks to become an adult.

Trematodes are a type of parasite that live inside humans and animals.

This tree has a lot of galls.

There are a lot of insect galls in the garden.

He is always a crybaby, crying at the slightest thing.