Life Over Time

Darwin’s theory of natural selection consists of four parts. What are the four parts?

• Overproduction, fossil record, extinction, genetic variation

• Selection, food supply, space, selective breeding

• Overproduction, selection, genetic variation, adaption

• Genetic variation, selection, artificial selection, overproduction

When every member of a species dies it is called?

Why did the Finches on the Galápagos Islands have different beaks sizes and shapes?

• They were different breeds

• The different diets that the Finches had developed

• Artificial Selection

• Fossil Record

What is made up of fossils and is around the world?

What characteristics helped Mammoths live in colder weather?

• Thick, furry coat

• Curved tusk

• Large body

• Small tail

A trait that is picked up in a organism life time?

_____ is an inherited trait that gives an organism an advantage in its particular environment.

• Evolution

• Fossils

• Natural selection

• Adaption

Darwin suggested that we could never "watch" evolution in action. Why did he believe this?

• Because evolution is just a theory and not a fact.

• Because evolution takes several generations to occur.

• Because evolution would be boring to watch.

• Because we cannot see evolution in other species.

What word means “change over time"

___ are mistakes in the DNA that cause variation within a species

• evolution

• adaptations

• Fossil record

• mutations