A tardigrade can survive in extreme environments.

Ruminants have the characteristic of re-chewing food after swallowing it once.

My pet is a dog.

Various plants and animals inhabit this park.

Cnidarians are a type of marine life, including jellyfish and corals.

Protozoans are single-celled organisms.

The ecosystem of zoobenthos is an important field of study in marine biology.

When she said thank you, I replied you're welcome.

He had a doctor look at his oesophagus problem.

How do you solve this problem?