Evolution Intro Review

a sudden change in the genes of an organism. It can cause abnormal physical traits.

• fossil

• extinction

• mutation

The dodo bird is

___

. It no longer lives anywhere on Earth.

• mutated

• extinct

• camouflaged

an idea that explains something, but may or may not be right.

• mutation

• theory

• fossil

• survive

• camouflage

• theory

removed from existence

• fossil

• extinct

• mutated

Cacti can

___

in hot, dry climates where many other plants would die.

• camouflage

• survive

• evolution

disguise, hide, cover

• extinct

• survive

• camouflage

• natural selection

• evolution

• fossil

the process of evolution by which forms of life that are better adapted to their specific environment survive and reproduce more often than those that are less well adapted.

• fossil

• mutation

• natual selection

The scientist found a(n)

___

in the rock. She studied it to learn more about what animals used to live here.

• theory

• fossil

• extinct