He showed me his new toy.

The term 'Eta' symbolizes historical discrimination and should not be used in modern society.

More or less, we all agree with his opinion.

Taki is my best friend.

His body build is like that of a sports player.

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

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

Protists are single-celled organisms that live in water.

Microorganisms are one of the basic forms of life.

Biotechnology plays a very important role in the medical field.