Q: Organism's changing over time is called?


Read this paragraph and choose the correct option from the provided answers:

Evolution means change over time. Darwin’s theory of evolution says that organisms change over time ( Figure below ). Evolution is seen in the fossil record. It is seen in the way organisms develop. Evolution is evident in the geographic locations where organism are found. It is evident in the genes of living organisms. Evolution has a mechanism called natural selection . The organism that is best suited to its environment is most likely to survive. Evolution is described in the chapter Life on Earth .

 Choices:

- generation

- heterogenicity

- variation

- evolution


A:
evolution