Fundamental knowledge of mathematics is necessary for daily life.

She loves physiology classes.

Excretion is one of the basic physiological phenomena of living organisms.

Animals digest food and excrete what is not needed.

It is important to learn the basic grammar of Japanese.

He ate one apple.

This phenomenon remains unexplained for scientists.

He found the target and shot the arrow.

Personally, I think this movie is the best.

What is this organism?