Biology
Biology is the scientific study of living things. There are more than 10 million species of living things on the earth. They range in size from microscopic bacteria to huge blue whales and towering redwood trees. Living things also differ greatly in where and how they live. However, all forms of life share certain characteristics that set them apart from nonliving things. These characteristics include the ability to reproduce, to grow, and to respond to changes in the environment.
Traditionally, biology has been divided into two major fields. Botany deals with plants, and zoology with animals. Botany and zoology are further divided into various branches and specialized areas of study. But most branches of biology