生態学は生物と環境の関係を研究する学問だ。
Seitaigaku wa seibutsu to kankyou no kankei o kenkyuu suru gakumon da.
Ecology is a field that studies the relationships between organisms and their environment.
生態学の知識は環境保全に役立つ。
Seitaigaku no chishiki wa kankyou hozen ni yakudatsu.
Knowledge of ecology is useful for environmental conservation.