This town is filled with a variety of people.

His nature is very kind.

Detailed information is needed to understand the nature of that project.

I was moved by his sincerity.

His nature is very kind.

Microorganisms are one of the basic forms of life.

Protists are single-celled organisms that live in water.

I love biology.

I am majoring in biology at university.

He is a world-renowned biologist.