I have been to Kikonai.

We camped in a densely wooded area.

Protists are being studied in a branch of biology.

Arthropods are a large group of animals that include insects, spiders, shrimp, and crabs.

Carbohydrates are important as a source of energy.

He is majoring in zoology at university.

I love biology.

The ejecta from volcanoes help to elucidate the geological history of the Earth.

This structure has existed for centuries.

He is an expert in mineralogy.