He is devoted to the study of neoplasms.

There are only inanimate objects in this room.

The use of bioweapons is prohibited by international law.

The study of nekton is an important part of marine biology.

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

Invasive species can have a major impact on the natural environment.

If you plant this seed, beautiful flowers will bloom.

Tane is my best friend.

The seed of his success lies in his effort.

He bought five kinds of fruits.