This inorganic compound plays an important role in chemical reactions.

In marine biology, plankton is an important part of the marine ecosystem.

He is very interested in paleontology.

I am majoring in biochemistry at university.

I am majoring in Biochemistry at university.

He has a deep interest in natural history.

This structure was built centuries ago.

He is devoted to the study of neoplasms.

The products of this region are very delicious.

Angiosperms make up the majority of plant species on Earth.