Darwin's Theory Of Evolution

1. Charles Darwin's observation that finches of different species on the Galápagos Islands have many similar physical characteristics supports the hypothesis that these finches

Have the ability to interbreed.

Acquired traits through use and disuse.

All eat the same type of food.

Descended from a common ancestor.

2. A change in a sequence of DNA is called a

Mutation.

Recombination.

Single-gene trait.

Polygenic trait.

3. The species of finches that Charles Darwin found on the Galápagos Islands displayed different structural adaptations. One of the adaptations that Darwin noted was the

Similarities of the birds’ embryos.

Birds’ different-shaped beaks.

Length of the birds’ necks.

Number of eggs in each bird’s nest.