1. Let’s review for the final! No points, just review.

2. 1. Which of these is NOT true about energy in the ecosystem? 1. Energy cannot be recycled. 2. Energy is captured by autotrophs. 3. Energy transfer is effcient. 4. The primary source of energy is the sun.

3. 2. Major climate change in Earth’s history has been tied to: 1. Pandemics. 2. Periods of evolutionary stasis. 3. Mass extinctions. 4. Genetic bottlenecks.

4. 3. “The effects of water pH on snail shell thinness” – the dependent variable is: 1. Shell thinness. 2. pH. 3. Snails. 4. Water.

5. 4. Which of the following makes a species MOST vulnerable to extinction? 1. Being highly specialized. 2. High genetic variation. 3. Large territory. 4. High biotic potential.

6. 5. Which of these is NOT a leading cause of extinctions? 1. Habitat destruction. 2. Over-exploitation. 3. Genetic engineering. 4. Environmental degradation. 5. Climate change.