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WorksheetsInteractions in Ecosystems
Total questions: 17
Worksheet time: 12mins
A forest is home to blue jays, rabbits, and foxes. The blue jays eat mostly acorns, seeds, insects, and fruit. The rabbits eat grass and bark. The foxes eat fruit, bird eggs, frogs, mice, rabbits, and birds. If the fox population suddenly got smaller, what would likely happen to the blue jay population?
It would remain the same
It would also get smaller
It would get larger
It would disappear
Which organisms are producers in a food chain?
plants
air
sunlight
water
Which organisms are consumers in a food chain)?
herbivore
plants
carnivore
omnivore
Animals get energy from other _________.
home
organisms
stores
plants and animals
Some farmland was recently developed into a neighborhood of houses. A coyote was found on the street near the houses. The reason this animal appeared on the street was most likely because it _________________.
became the pet of a neighborhood homeowner
preferred the neighborhood instead of farmland
lost its natural habitat on the farmland
escaped from its habitat at the local zoo
All the living and nonliving things in an area interacting with each other is a(n)
abiotic
ecology
environment
ecosystem
Which factor would most likely wipe out a population of eagles in the forest?
higher rainfall than normal
a great increase in the rabbit population
extreme windstorms in the desert
disease wipes out all rodents
All of the following could limit the growth of a population except which factor?
harsh winter
increased predator population
lack of rain
plentiful food sources
If conditions are favorable, a population of rabbits will continue to grow and increase. What could limit the growth of a population of rabbits?
a decrease in the number of foxes
a drought
a mild winter
an abundance of green, leafy plants
Extinction of various plants is a threat to humans mainly because of ____.
the loss of shade and protection from the sun
the loss of food and medicine
the loss of money for farmers
the loss of erosion prevention
If one species of bird becomes extinct, what is most likely to happen to the animals that used to catch and eat that bird species?
Their number would increase
They would not be affected
Their number would decrease
They would evolve into a new species
The amount of grain available in an area decreased due to flooding of the land. What would most likely be a result of a decrease in the amount of grain?
Organisms that eat the grain will grow out of control
Organisms that eat the grain will not be affected.
Organisms that eat the grain will increase
Organisms that eat the grain will decrease
A healthy, stable ecosystem is one in which many kinds of plants and animals--
lack what they need to live
produce only a few offspring
are protected from all diseases
are able to meet their needs
How would an ecosystem change dramatically?
A bird living in his nest
a river flowing peacefully
a shopping center being built
