1. Chapter 2
Lesson 3
Biogeography

2. What is biogeography?
The study of where organisms live. It basically describes where living things are found on Earth.

3. Continental Drift
This is a process in which the plates move either closer or farther apart.
The continents are parts of huge blocks of rock that are called plates. As the plates move, so do the continents.
Continental drift has impacted the distribution of species on Earth.

4. What was Pangea?
Pangea was a name given to all of the continents when they were once connected. Look at how the continents look like a puzzle.

6. Pangea
Watch the video showing Pangea. Notice how the continents move and break apart.

7. Means of dispersal Wind and water Other living things
What does dispersal mean?
How do wind and water and other living things disperse various species?

8. Limits to Dispersal There are 3 factors that limit disperal.
What is the first?
How does it work?

9. Limits to Dispersal
What is another limit?
How does it work?

10. Limits to Dispersal
What is the third limit?
How does it work?