Which organisms grow throughout their lives and which ones have limited growth?

Growth is an increase in body size. Unlimited growth, that is, an increase in body size throughout life, is characteristic of plants and fungi. This is due to the fact that these organisms have been in one place all their lives.

Limited growth, that is, growth up to a certain age, is characteristic of most animals. This is due to the fact that animals lead predominantly an active lifestyle and growth restrictions provide a relative compactness of the body.