Judged: two independent readers; copy check clear.
animal
animal In this historical source, an animal is described as a living organism that cannot make its own protoplasm from inorganic material.
In this historical source, an animal is described as a living organism that cannot make its own protoplasm from inorganic material. The entry also stresses that no brief definition cleanly separates animals from plants, especially among simpler organisms, so classification depends on the organism’s overall life history, development, nutrition, and evolutionary relationship.