| A | B |
|---|
| Why do chipmunks survive in the Great Smoky Mountains? | The forest meets all of their needs |
| Wha could be done if there are too many rabbits in an ecosystem? | get more foxes to eat the rabbits |
| What is one way plants' and animals' interactions help balance an ecosystem? | animal use oxygen, plants make oxygen and put it back in the air |
| Wat does a parasite do to an ecosystem? | hurts one organism but helps a different one |
| Succession is... | a gradua change in environment |
| would cause an ecosystem to change quickly | fire, floods, tornados, earth quakes, and hurricanes |
| if scientists found a fossil of a fish in a desert | long ago seas used to cover the area where fossil was found |
| might cause an animal to become extinct | humans destroying its habbitat |
| how do hawks and owls compete for the same food? | hawks hunt at daytime |
| what people do that disturbs the ecosystem | cut down trees for lumber to build houses |
| when mining for coal in the land, large holes are left behind, what should be done for animals? | replace the soil |
| Why would the US have National Parks? | preserve the beauty of nature and habitats of plants and animals |
