Microorganisms are one of the basic forms of life.

Protists are single-celled organisms that live in water.

I am majoring in biology at university.

He is a world-renowned biologist.

The depressed cowry lives quietly at the bottom of the sea.

There was a spot on his shirt.

I have been to Ahmedabad.

My grandmother drinks Panax ginseng tea every day.

Pentathlon is a competition that tests both physical strength and technique.

He participated in the Olympics as a pentathlon athlete.