Explains what living things are, looks at animal bodies, and discusses the characteristics of insects, reptiles, fish, birds, mammals, plants, and other living things.
Examines the characteristics of living organisms, describing the features of an insect, reptile, fish, bird, mammal, and plant, as well as such unusual creatures as bacteria, polyps, mollusks, and worms.
Explains what living things are, looks at animal bodies, and discusses the characteristics of insects, reptiles, fish, birds, mammals, plants, and other living things.
