| A | B |
|---|
| provides energy for all life | sun |
| makes its own food | plants/leaves |
| natural change in ecosystem | drought/little rain |
| human interaction in eco | fertilizing/clearing land |
| when land is cleared...... | food and shelter is taken away |
| Bonus | Bonus |
| Doulbe Bonus | Double Bonus |
| survival skill | competing for food |
| When food is unavailable | animals move to new place |
| animals (prey) in food chain | source of energy for predators |
