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WorksheetsNC EOC Review: Ecosystems
Total questions: 25
Worksheet time: 15mins
Name
Class
Date
1.
Jack learned about an organism that can survive in shallow ocean ecosystems as well as salt marshes. Which characteristic does this animal most likely possess?
a)
The organism can survive with a very small amount of food.
b)
The organism can survive with very little sunlight.
c)
The organism can survive in salt water.
d)
The organism can only survive in fresh water.
2.
Which best explains how a pond ecosystem is similar to a rainforest ecosystem? Both ecosystems...
a)
contain large amounts of water.
b)
are found in most parts of the world.
c)
contain the same communities of organisms.
d)
support food webs made up of producers and consumers.
3.
Which area is coldest?
a)
rainforest
b)
grassland
c)
tundra
d)
reef
4.
Which best describes a freshwater ecosystem?
a)
an ocean environment with living organisms
b)
an inland water environment with no living organisms
c)
an ocean environment with living organisms and nonliving parts
d)
an inland water environment with living organisms and nonliving parts
5.
Where are fern plants most likely to grow?
a)
in a desert
b)
along a river
c)
at the bottom of an ocean
d)
in the middle of a prairie
6.
High average daily temperature and heavy annual precipitation are found in a
a)
desert.
b)
grassland.
c)
rainforest.
d)
tundra.
7.
Which is most similar to a grassland community?
a)
a lake
b)
a plain
c)
a forest
d)
a tundra
8.
In which ecosystem can the greatest variety of organisms be found?
a)
lake
b)
estuary
c)
rainforest
d)
tundra
9.
Which type of ecosystem can be found in the mountain regions of North Carolina?
a)
estuary
b)
grassland
c)
deciduous forest
d)
tropical rain forest
10.
What best describes both marshes and swamps? Most of the plants in....
a)
marshes and swamps are trees.
b)
marshes and swamps are grasses.
c)
in marshes are trees. Most of the plants in swamps are grasses.
d)
marshes are grasses. Most of the plants in swamps are trees.
11.
A food web includes grass, grasshoppers, moss, and mushrooms. Which is identified as a consumer?
a)
grass
b)
grasshopper
c)
moss
d)
mushroom
12.
Which best describes a decomposer?
a)
an organisms that eats only plants
b)
an organism that makes its own food
c)
an organism that breaks down dead matter
d)
an organism that receives energy from the sun
13.
Which type of organism converts energy from the sun into organic material?
a)
producers
b)
consumers
c)
decomposers
14.
Which group lists only decomposers?
a)
tadpoles, frogs, and algae
b)
detritus, crayfish, and turtles
c)
bacteria, earthworms, and fungi
15.
Which of these organisms is considered a consumer?
a)
algae
b)
bird
c)
fungi
d)
tree
16.
Which best describes the role of both mushrooms and worms in an ecosystem?
a)
They provide food for carnivores.
b)
They provide food for themselves.
c)
They provide nutrients for the soil.
d)
They provide nutrients during photosynthesis.
17.
Why would an oak tree be considered a producer?
a)
It can eat plants or animals to survive.
b)
It provides acorns for squirrels.
c)
It does not decay when it dies.
d)
It is inorganic.
18.
European starlings are birds that take over the nests of other birds. When they move into an area, starlings reproduce quickly. Taking over the nest of other birds most likely increases the number of starlings by helping them to do what?
a)
attract a better mate
b)
compete for resources
c)
migrate during the winter
d)
blend in with the environment
19.
The number of fish in a lake suddenly increases. How will the increase most likely affect the lake?
a)
There will be less water in the lake.
b)
More plants will grow in the lake.
c)
More frogs will live in the lake.
d)
There will be fewer insects in the lake.
20.
Noah visited a park that had many oak trees. Which best describes the role of an oak tree in its ecosystem?
a)
Oak trees can live for a long time.
b)
Oak trees have leaves that changes colors.
c)
Oak trees have strong branches and trunks.
d)
Oak trees are a source of food and shelter for animals.
21.
In what way do bushes benefit from bears eating their berries?
a)
Their seeds are spread around.
b)
Other predators are scared away.
c)
Nearby ground becomes compacted.
d)
Their stems and branches are broken.
22.
Which is a possible result of humans destroying habitats?
a)
an increase in available niches
b)
an increase in the number of prey
c)
an increase in the number of predators
d)
an increase in the number of endangered species
23.
Which consumer in a grassland community would be considered both predator and prey?
a)
a grasshopper, because it eats grass and is eaten by birds
b)
a rabbit, because it eats snakes and is eaten by deer
c)
a snake, because it eats mice and is eaten by hawks
d)
an earthworm, because it eats dead animals and is eaten by birds
24.
Why is the presence of insects in a rain forest ecosystem important?
a)
insects store water needed by other animals
b)
insects create energy needed by other animals
c)
insects help keep plant growth under control by eating leaves
d)
insects are a source of food for many organisms living in this ecosystem
25.
Which would most likely happen if an ecosystem does not receive sunlight for a long time?
a)
All living organisms would eventually die.
b)
The number of plants would be increased.
c)
All living organisms would eventually adapt.
d)
The number of herbivores would be increased.
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