Show:
Balanced Ecosystems
Organisms Interacting
Environments Change
Human Impact
100
Why do chipmunks in the Great Smoky Mountains survive?
Their needs are met in that environment.
100
How would an ecosystem change if the rabbits that were the MAIN prey for foxes became sick and died?
The number of foxes would decrease.
100
What is the gradual change from one community of organisms to another called?
Succession
100
What is one way people can disturb the balance of ecosystems?
building houses
200
Which describes a balanced ecosystem?
No animal or plant drives out other animals and plants.
200
What impact does a parasite have in an ecosystem?
hurts one organism and helps another
200
What would cause an ecosystem to change quickly?
any natural disaster (earthquake, fire, tornado, hurricane, flood, etc.)
200
How can damage from strip mines be repaired?
Mining companies can replace the soil.
300
A meadow has too many rabbits. What would help balance this ecosystem?
More foxes that eat rabbits
300
What is one example of organisms living side by side, where one is helped and the other is unaffected?
Moss on a tree, seeds on fur, or an orchid on a tree
300
What might be the effect on an ecosystem of a climate change from rainy to dry?
A change in kinds of plants and animals
300
Why did the United States establish national parks?
to preserve nature's beauty and habitats of plants and animals
400
How do grass and rabbits work to balance their ecosystem?
Grass makes oxygen, and animals use it.
400
What is one example where organisms live together and help each other?
Egyptian Plover and Crocodile, Lichens, or Bacteria and your stomach
400
What could scientists tell from a fish fossil found in a desert?
The desert was once a sea or lake.
400
What is waste that causes diseases called?
Hazardous Waste
500
What image could you think of when talking about ecosystems?
A see-saw
500
What is an example of a parasitic relationship?
Flea on a dog, botfly, mistletoe on a tree, or Asian long-horned beetle larvae in a tree
500
How are a hawk and an owl able to succeed, even though they compete for food?
One hunts at night, and the other hunts during daytime.
500
What is one example of a National Park?
Yellowstone, Saguaro, Okefenokee, and Everglades