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Evolution and Adaptation

6th Grade Science   March 29, 2017
Across
Early form of an organism from which later forms came from
Is the theory that all kinds of living things that exist today developed from earlier types
The process where organism better adapted to their environment tend to survive and produce more offspring
Refer to events or processes leading to the creation of new species
Down
Several periods where large numbers of species became extinct
Are remains of organisms preserved in the Earth
The process by which a species becomes better suited to its environment is called adaptation
A living thing made up of one or many cells