Variations are the differences among individuals of a species, such as different bird beaks.

Charles Darwin studied finches at the Galapagos Islands.

Natural Selection is the process where organisms with advantageous traits survive and reproduce more successfully.

'Survival of the Fittest' describes the theory of natural selection, where the best-adapted organisms survive.

Charles Darwin traveled to the Galapagos Islands.

Selective Breeding is the process of breeding plants or animals for specific traits.

Natural Selection occurs naturally, while Selective Breeding is a human-directed process.

Genes are the units of heredity that contribute to variations among individuals.

An example of a trait is the color of a bird's feathers.

The Galapagos Islands are significant because they were studied by Darwin, leading to insights on evolution and natural selection.