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WorksheetsEcosystem review
Total questions: 29
Worksheet time: 15mins
Name
Class
Date
1.
Which process is considered to be a part of the carbon cycle?
a)
precipitation
b)
condensation
c)
photosynthesis
d)
metamorphosis
2.
Animals that eat both plants and other animals are called:
a)
decomposers
b)
scavengers
c)
herbivores
d)
omnivores
3.
What do plants depend on from animals and humans?
a)
energy for photosynthesis
b)
pest control
c)
carbon dioxode
d)
oxygen
4.
Which is a first level consumer?
a)
a wolf
b)
a hawk
c)
a carrot
d)
a rabbit
5.
Which is the process that converts sun energy into stored chemical energy?
a)
phototropism
b)
photosynthesis
c)
respiration
d)
pollination
6.
What is one way plants and animals are different?
a)
Plats do not need minerals and animals do.
b)
Plants produce their own food and animals do not.
c)
Plants do not produce oxygen and animals do.
d)
Plants need sunlight and animals do not.
7.
What gas is released by producers that consumers take in to survive?
a)
oxygen
b)
nitrogen
c)
water vapor
d)
carbon dioxode
8.
How do producers get energy?
a)
eating plants and seeds
b)
eating other animals
c)
breaking down organisms through decay
d)
using the sun to make food
9.
The organisms that convert solar energy and raw materials into food are:
a)
producers
b)
consumers
c)
herbivores
d)
decomposer
10.
Which organisms use energy from remains of dead animals and recycles nutrients back into the soil?
a)
producers
b)
herbivores
c)
omnivores
d)
decomposers
11.
What organism has the greatest amount of energy?
a)
herbivore
b)
carnivores
c)
producers
d)
decomposers
12.
What animals prey on other animals?
a)
herbivores
b)
carnivores
c)
autotrophs
d)
decomposers
13.
What animals prey on other animals?
a)
herbivores
b)
carnivores
c)
autotrophs
d)
decomposers
14.
Which abiotic factor will cause a plant shoot to grow in a direction other than straight up?
a)
temperature
b)
amount of top soil
c)
amount of water
d)
location of the light
15.
Which of the following is a biotic factor:
a)
water
b)
clouds
c)
tree
d)
sun
16.
Which is an abiotic factor in a stream ecosystem?
a)
pond water
b)
watercress plants
c)
minnows
d)
crayfish
17.
A farmer plants corn in the same field every year. Each year his production of corn decreases. What abiotic factor is causing this?
a)
decrease in soil nutrients
b)
increase in precipitation
c)
increase in wind speed
d)
decrease in sunlight
18.
As the hawk population increases in an ecosystem, the deer and mouse population will most likely decrease as a result of:
a)
decrease in food source.
b)
increase in disease
c)
increase in predators
d)
decrease in habitat
19.
What is the role of dead leaves in an ecosystem?
a)
provides shelter to growing seeds
b)
provides nutrients to other plants
c)
prevents fungus from growing at the base of a tree
d)
releases chlorophyll into the grass as they decay
20.
A brown bear eats roots, berries, nuts, fish, insects, and mammals. What category is a brown bear?
a)
carnivore
b)
herbivore
c)
omnivore
d)
decomposer
21.
How is a monarch butterfly similar to the milkweed plant?
a)
Both organisms hatch from eggs.
b)
Both organisms need water to survive.
c)
Both organisms use sunlight to make food.
d)
Both organisms breathe oxygen from the air.
22.
Which external stimulus causes a plant to bend toward it?
a)
a source of light
b)
a magnetic field
c)
a spray of water
d)
a source of wind
23.
Lions eat giraffes in savannas. What would happen to the flow of energy if giraffes were affected by disease?
a)
Remaining giraffes would fight each other for food.
b)
Less food and energy will be available to lions.
c)
Lions will begin eating other mammals.
d)
Trees and shrubs which a giraffe eats would decrease.
24.
How are animals that prey on other animals classified?
a)
herbivores
b)
carnivores
c)
decomposers
d)
autotrophs
25.
Plants growing in a pond release a gas that fish need to survive. What is the gas?
a)
helium
b)
hydrogen
c)
nitrogen
d)
oxygen
26.
Which is a secondary consumer?
a)
Lion
b)
Rabbit
c)
Grasshopper
d)
Oak Tree
27.
A pond is a habitat for many fish. What would happen to the fish if there was a long drought?
a)
They would adapt to the dry environment.
b)
They would live on other sources of water.
c)
They would move to another habitat.
d)
They would be unable to survive.
28.
Which environmental factor will cause a plant to grow in a direction other than straight up?
a)
temperature
b)
amount of top soil
c)
amount of water
d)
location of the light
29.
What term describes a slow change in an environment?
a)
abiotic
b)
biotic
c)
regression
d)
succession
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