7.1, 7.2, and 7.3 Recap

How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce

Change over time

• Natural Selection
• Selective Breeding
• Homeostasis
• Evolution

Natural Selection is driven by a change in the environment and survival of the

• Earth

• Fastest

• Fittest

• Biggest

Women often have complications during labor while giving birth to very large babies, whereas very small babies tend to be underdeveloped. As a result, medium sized babies are the ones that end up surviving to adulthood.

• Directional Selection

• Stabilizing Selection

• Disruptive Selection

Black rabbits (BB) and white rabbits (bb) are both able to survive because they can camouflage into the white and black rocks in their environment. However, the intermediate gray rabbits (Bb) do not survive. This results in only white and black rabbits.

• Directional Selection

• Stabilizing Selection

• Disruptive Selection

A population of birds with various size beaks eats seeds. Small seeds can be eaten

by birds with small beaks. Larger, thicker seeds can only be eaten by birds with larger, thicker beaks. During a

drought, only large thick seeds exist so only the large, thick-beaked birds survive.

• Directional Selection

• Stabilizing Selection

• Disruptive Selection

The hypothesis that evolution of a species occurs gradually over time as a slow and constant process is known as

• speciation
• punctuated equilibrium
• gradualism
• microevolution

What is convergent evolution?

• evolution toward similar traits in unrelated species
• evolution toward different traits in closely related species
• elimination of a species from Earth
• the rise of two or more species from one existing species

 What type of evolution is demonstrated in this photo?

• Coevolution
• Convergent evolution
• Punctuated evolution
• Gradualistic evolution

Sharks and dolphins both have streamlined bodies that allow them to move through water efficiently, this is an example of which type of evolution?

• Divergent
• Coevolution
• Convergent
• Artificial