He is a world-renowned biologist.

He started a new business, but as the proverb 'the road to happiness is strewn with setbacks' suggests, he is facing many difficulties.

He is deeply studying the teachings of Prajnaparamita.

Cell biology is the study of the structure and function of cells, which are the basic units of life.

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

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

He is an expert in aerobiology, engaged in the study of microorganisms in the atmosphere.

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

I am majoring in biophysics at university.

I am majoring in Biochemistry at university.