He is an expert in molecular biology.

I am majoring in developmental biology at university.

Biotechnology is a science that understands the mechanisms of life and utilizes them.

He is an expert in nuclear physics.

My brother is a famous biologist.

He is interested in paleozoology.

He is majoring in electrical engineering.

He is majoring in civil engineering.

I am very interested in natural science.

Statistical mechanics is a branch of physics that provides a theoretical framework for understanding macroscopic phenomena from a microscopic perspective.