DK Zoology Inside the Secret World of Animals by DK

animal. a living organism that is made of many cells that usually collaborate to form tissues and organs, and that ingests organic matter-such as plants or other animals-for nutrition and energy.
rom the two other major kingdoms of organisms-fung and plants-in the fabnc of their bodes. Animals have colagen holding their cells together into tissues, and and all but the smplest use nerves and muscles to move Whether rooted to one spot sponges, as active as ants animals gather food Unlke that absorb dead matter