Everyone was surprised by the news.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He has a deep interest in archaeology.

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.

Protecting the biosphere is important for the future of the Earth.