I am majoring in developmental biology at university.

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.

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 is the type of person who understands ten from hearing one.

He is exactly in the state of 'A frog in a well does not know the vast ocean.'

He spoke of his big dreams, saying, 'How can a sparrow understand the ambitions of a swan?'

World War I was a large-scale war that lasted from 1914 to 1918.