Studies Weekly 23: Survival of the Fittest

What is fitness?

• How much a organism can eat

• How good looking an organism is

• how often organisms exercise

• how well an organism is adapted

Why do organisms adapt?

• to breathe

• to move

• to grow

• to survive

What do fitter organisms do?

• fight fewer predators

• produce more offspring

• create larger body size

• exercise more