Many immigrant plants live in this park.

There are various types of plants in my garden.

He is an expert in toxicology and conducts many studies.

Protists are single-celled organisms that live in water.

He is majoring in zoology at university.

This building has existed for centuries.

He believes in the philosophy of materialism.

This animal is a protected species, so you must never touch it.

I am majoring in biology at university.

Carbohydrates are important as a source of energy.