Fundamental knowledge of mathematics is necessary for daily life.

She loves physiology classes.

Animals digest food and excrete what is not needed.

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

It is important to learn the basic grammar of Japanese.

He ate one apple.

This phenomenon remains unexplained for scientists.

Personally, I think this movie is the best.

He found the target and shot the arrow.

What is this organism?