Examlex
A primary function of the digestive system is the
Natural Selection
A process in biological evolution where organisms with traits best suited to their environment are more likely to survive and reproduce.
Common Ancestor
A hypothetical or actual individual organism from which two or more lineages or species are descended.
Physical Features
The characteristics of an object or organism's body, such as shape, size, and color, visible and measurable.
Mutation
a change in the DNA sequence within an organism's gene or chromosome, leading to the creation of a new trait not found in the parental type.
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