The use of bioweapons is prohibited by international law.

Papa Bush was the 41st president of the United States.

We have a responsibility to protect the biodiversity of the Earth.

Protozoans are single-celled organisms.

In this chemistry experiment, we will learn about the dangers of cyanide compounds.

He is a world-famous physicist.

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

There are many succulent plants in my room.

In organic chemistry, cyclobutane has a structure in which four carbon atoms are bonded in a ring.

He was just looking from a distance while the problem was happening.