He observed the bird's feathers using a speculum.

You passed the exam, well done!

I like to soak in the bathtub after a long day.

He is always thought to be a greedy person.

We are planning to go to the botanical garden this weekend.

He is majoring in botany at university.

He is majoring in botany at university.

Many immigrant plants live in this park.

Chrysophyta perform photosynthesis underwater.

He ended up in a vegetative state after the accident.