Different characteristics of plants and animals help some populations survive and reproduce in greater numbers.

*Individuals of the same kind differ in their characteristics, and sometimes the differences give individuals an advantage in surviving and reproducing, creating a population with survival and reproductive advantages.
*Many characteristics of an organism are inherited from the parents of the organism; however, other characteristics result from a population's adaptations to the environment.
*Fossils can be compared to one another and to living organisms according to their anatomical similarities and differences.
*Some organisms that lived long ago are similar to existing organisms, but some are quite different.

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