| A | B |
|---|
| a system | has parts that work together for a purpose |
| a tunnel in the prairie | the prairie dog's habitat |
| an ecosystem | a system where living and non-living things interact |
| cause - decrease in amount of food | effect - decrease in an animal population |
| food web | a system of overlapping food chains |
| producers | most plants |
| consumers | animals |
| sunlight | main source of energy for life on earth |
| wings | an adaptation useful for eating nectar from plants |
| decomposer | an organism that eats the remains of animals |
| nutrients & minerals | travel through a food chain |
| a fresh water snail | eats algae & is eaten by blue herons |
| omnivore | eats both plants & animals |
| carnivores | eats other animals |
| herbivore | an animal that eats only plants |
| cause-most of a population dies of disease | effect-the food web will change |
| the niche of decaying organisms | putting minerals back into the soil |
| habitat of a roadrunner | desert |
| niche of a roadrunner | its job of chasing food like lizards & escaping the coyote |
| an animal with sharp teeth & claws | most likely a carnivore |
