Please press this button in case of emergency.

Education about sex is very important.

This lake is known as a dangerous body of water.

Bioinformatics is an essential field for the analysis of biological data.

Biomass energy is one of the renewable energy sources.

My biorhythm is disturbed, and I've been tired lately.

Bioterrorism is a serious threat to modern society.

The threat of bioterrorism is a very serious issue for all of us.

His explanation was impossible to understand.

Please use the emergency stairs in case of a fire.