Chemotransmitters play an important role in the transmission of information between nerve cells.

Cosmic background radiation is considered evidence of the Big Bang.

He attacked the enemy using a flamethrower.

In physics, blackbody radiation is a very important concept.

A fermion is one of the fundamental constituents of matter.

He is involved in the research of particle accelerators.

He is facing many difficulties due to gender identity disorder.

He tried to solve the problem all day long.

One side of the park was covered with beautiful flowers.

Let's finish this job for now and then move on to the next.