1. Variations
Biodiversity is often higher on islands – isolated for a long time  greater variation
Also higher near equator
Galapagos Finches – Pg. 11 – Choose 5 species and describe their habitat based on their adaptations
Eg. cocos island finch – maybe lava flat or dark forest, eats seeds
Variation = survival!!!
If all organisms were the same none would have any resistance to threats (predation, weather)
Types of Variation
Structural Adaptation – something an organism has
Behavioral Adaptation – something an organism does

2. Which is more diverse?

4. Diversity Index Quantitative way of comparing diversity of an area.
Eg.