Biotechnology plays a very important role in the medical field.

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.

He made an effort to overcome his fear.

My area is very quiet and rich in nature.

He was unable to control his lust.