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

I am very interested in marine biology.

The study of benthos is an important field in marine biology.

According to the law on specified alien species, the import of certain organisms is prohibited.

He has the ability to change into a wolf.

He is as strong as an ox.

Astrocytes are one of the important support cells in the brain.

Oligodendrocytes play a role in supporting the nerve cells of the central nervous system.

My biological clock is completely messed up.

He received the letter challenging him to a duel and began preparing for the duel.