Evolution

You look at two species and see very similar DNA. What does this likely tell you?

• They are the same animal

• These animals are not related

• These animals have a common ancestor

• These animals are likely becoming one species

Horse breeding for specific desired traits is an example of which type of evolutionary evidence?

• Natural Selection

• Artificial Selection

• Fossils

• Embryology

An inherited characteristic that increases an organisms ability to survive and reproduce in its specific environment is called a(n)

• vestigial structure

• analogous structure

• speciation

• adaptation

According to the theory of natural selection, some individuals are more likely than others to survive and reproduce because they:

• pass on to their offspring their newly acquired traits

• do no pass on newly acquired traits

• are better adapted to their environment than other and will pass on those adaptations to future offspring

• produce fewer offspring than others in the same environment

The finches on the Galapagos Island were similar in form except for variations of their beaks. Darwin observed that these variations were useful for:

• attracting a mate

• building nests

• defending territory

• gathering food

The gradual change in species over time is

• adaptation

• geographic isolation

• vestigial structure

• evolution

What is this an example of

• analogous structures

• homologous structures

• fossil record

• embryonic development

Predict which moth would increase in population

• light

• dark

• both

• neither

The reduced genetic diversity that results when a population is descended from a small number of colonizing ancestors that interbreed.

• natural selection

• genetic bottleneck

• founder effect

• coevolution

What is a change in a DNA sequence?

• adaptation

• natural selection

• mutation

• evolution