Unit 5: Evolution and Natural Selection

Paleontologists infer that the earth is approximately how many years old?

• 4.5 million years
• 450 million years
• 450 billion years
• 4.5 billion years

Genetic differences between organisms of the same species

• Variation
• Adaptation
• Behavior
• Environment

The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example of ________________

• Species
• Environmental Change
• Adaptation
• Variation

What is the advantage of a bird species having different shaped beaks?

• To look different from other species.
• To be able to eat the food readily available in the environment.
• To protect itself against predators.
• To protect itself against prey.

Based of the image given, predict which moth would increase in population...

• light 

• dark

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

A scientist who studies fossil remains in order to study primitive life forms.

• Ecologist

• Geologist

• Zoologist

• Palentologist

To adjust to a changing environment

• Mutation
• Adapt

What are fossils that are abundant, easily recognizable, short lived, and widespread called?

• Preserved fossils

• Index fossils

• Imprints

• Radioactive dating

Study of embryos of various organisms to show a common ancestor because of similarities in development

• natural selection
• embryology
• speciation
• evolution