Vocabulary
Open Response
Multiple Choice
Fill in the blank
True or False?
100
What is the definition of the word "prey"?
An animal that is food for another animal
100
Why did the United States establish National Parks?
The United States established National Parks to preserve nature's beauty and habitats of plants and animals.
100
Why do chipmunks in the Great Smoky Mountains survive? a. their needs are met in that environment b. they have driven out all other chipmunks c. humans feed them d. humans have moved them from cities to the mountains.
a. Their needs are met in that environment.
100
An ecosystem with a pond gradually gets taken over by plants, by a process called _________________.
succession
100
A hawk and an owl are able to succeed, even though they compete for food, because one hunts at night and the other during the day.
True
200
What is a "host organism"?
An organism that is the home for the parasite.
200
Explain the relationship between parasites and hosts.
The parasites live in or on the host, drawing their nutrients and energy from the host. The host is the provider of the nutrients and energy. The host provides the nutrients and energy from its own source of energy. Therfore, most parasites take needed nutrients from the host.
200
Which describes a balanced ecosystem? a. there is enough food for people to exist b. one type of animal and plant depend on each other. c. no animal or plant drives the others out d. humans create shelter and food for animals and plants.
No animal or plant drives the others out.
200
An earthquake causes an ecosystem to change at a very ____________rate of speed.
fast
200
People can disturb the balance of an ecosystem by breathing air.
False
300
What is a parasite?
An organism that lives in or on another organism, drawing its energy from the host organism.
300
If a meadow ecosystem has too many rabbits, what would help to balance this ecosystem?
It needs more animals that eat rabbits.
300
How do the interactions between deer and grass help to balance the ecosystem? a. deer sleep in the grass b. grass and deer both need oxygen c. grass makes oxygen and animals use it. d. grass depends on deer to protect it.
Grass and deer both need oxygen.
300
A change in kinds of ___________and animals is caused by a climate change from rainy to dry.
plants
300
People can disturb the balance of an ecosystem by building houses.
True
400
What is the meaning of the word "extinct" ?
It means that there are no more known animals of the species. They have all died.
400
What would happen if the stream in a forest ecosystem became polluted with raw sewage?
The water plants and animals would probably die. Animals that depend on the stream for their drinking water might become sick and die. Any plants near the water that have roots near the water might be affected as well.
400
How would an ecosystem change if the rabbits that were the main prey of foxes all died? a. the foxes would find new prey b. the number of foxes would increase c. the number of foxes would decrease d. the foxes and rabbits would compete for food.
the number of foxes would decrease.
400
By finding a fish ___________in a desert, scientists could tell that the desert was once a body of _____________.
fossil water
400
Strip mines are mines where people go to take their clothes of so they can shower.
False
500
What does it mean if an animal is "endangered"?
It means that the animal is in danger of becoming extinct. There are still some of the animals living, but there are very few.
500
How could a flood affect an entire ecosystem?
Animals might get caught in the flood and die. Mudslides could bury the homes of the animals and the animals themselves. the plants would be drowned with water and would not get enough sunlight. The ecosystem might change from a land ecosystem to a water ecosystem. The flood would bring in water organisms with it.
500
What impact does a parasite have in an ecosystem? a. helps the entire ecosystem b. hurts one organism and helps another c. helps both the host organism and a parasite d. hurts both the host organism and the parasite.H
hurts one organism and helps another
500
An animal might become _____________if its ____________is destroyed.
extinct habitat
500
Damage from strip mines can be repaired by replacing the soil.
True.
M
e
n
u