the smallest unit that can perform all life processes; cells are covered by a membrane and have DNA and cytoplasm

anything that causes a reaction or change in an organism or any part of an organism

the maintenance of a constant internal state in a changing environment

reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents

reproduction that does not involve the union of sex cells and in which one parent produces offspring identical to itself

the passing of genetic traits from parent to offspring

the sum of all chemical processes that occur in an organism