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Ecosystem EOG Review

Total questions: 31

Worksheet time: 25mins

Name
Class
Date
1.

In a food chain, the sun provides energy for an apple to grow. A deer eats an apple from the tree. Which is a consumer?

a)

the tree

b)

the apple

c)

the deer

d)

the sun

2.

Which best explains why producers are an important part of an ecosystem?

a)

They pass the Sun´s energy on to other organisms.

b)

They pass energy from consumers to decomposers.

c)

They make their own energy and pass it on to other producers.

d)

They pass energy from first level consumers to second level consumers.

3.

Which best describes the role of both mushrooms and worms in an ecosystem?

a)

They provide food for carnivores.

b)

They provide food for herbivores.

c)

They provide nutrients for the soil.

d)

They provide nutrients during photosynthesis.

4.

In which category are all living things most directly dependent upon the sun for energy?

a)

carnivores

b)

producers

c)

herbivores

d)

decomposers

5.

Which is most likely to 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.

6.

Which is a difference between a tropical rainforest and a deciduous forest?

a)

A tropical rainforest is smaller in size than a deciduous forest.

b)

A tropical rainforest receives more sunlight than a deciduous forest.

c)

A tropical rainforest receives a greater annual precipitation than a deciduous forest.

d)

A tropical rainforest has a greater number of rivers and lakes than a deciduous forest.

7.

In which ecosystem would both algae and tadpoles MOST LIKELY be found?

a)

pond

b)

ocean

c)

tide pool

d)

coral reef

8.

Which type of ecosystem can be found in the mountain region of North Carolina?

a)

estuary

b)

grassland

c)

deciduous forest

d)

tropical rain forest

9.
In a grassland ecosystem, if the population of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem?
a)
The ecosystem will become overpopulated with snakes.
b)
There will be a decrease in the population of snakes in the ecosystem.
c)
The nutrition of the soil in the ecosystem will decrease
d)
More types of plants will begin growing in the ecosystem.
10.
Which gets all its energy from the sun?
a)
consumer
b)
producer
c)
decomposer
d)
no living organism
11.
How are lakes and estuaries similar?
a)
They both have salt water.
b)
They both have freshwater.
c)
They both are located in the same area.
d)
They are not the same.
12.
How are the tropical rain forest and pond ecosystems similar?
a)
They both have large amounts of trees.
b)
They both have producers and consumers.
c)
They both have the same plants and animals.
d)
They are not the same at all.
13.
Which ecosystem would most likely contain fish that can only survive in freshwater?
a)
lake
b)
estuary
c)
ocean
d)
outer space
14.

Which animal would you most likely find in a deciduous forest?

a)

bison

b)

deer

c)

duck

d)

panther

15.

Which best explains why tropical rainforests always have warm temperatures?

a)

They are at low altitudes.

b)

They are near the Equator.

c)

A canopy of trees traps heat.

d)

The many animals produce heat.

16.

Which is most likely the greatest challenge to organisms living in estuaries?

a)

the varying levels of salt

b)

the animal diversity that exists

c)

the amount of sunlight received

d)

the changes in water temperature

17.

Joey was walking through a forest when he looked up and saw a monkey being chased by a panther. Which type of forest was he most likely visiting?

a)

rainforest

b)

deciduous forest

c)

coniferous forest

18.

An ecologist is comparing two different ecosystems and creates the following list of similarities:


aquatic

diverse fish life

high salt concentration

plentiful light at the water’s surface


Which two ecosystems was the ecologist most likely comparing?

a)

ocean and lake

b)

estuary and ocean

c)

grassland and pond

19.

Decaying plants and animals are important to an ecosystem because they

a)

cause disease in living organisms.

b)

reduce soil erosion.

c)

recycle oxygen to the air.

d)

return nutrients to the soil.

20.

Which organism is a consumer?

a)

grass

b)

ladybug

c)

pine tree

d)

sunflower

21.

Complete the table.

a)

Plants: grass, small shrubs

Animals: prairie dogs, coyotes

b)

Plants: cactus

Animals: lizards, rats, insects

c)

Plants: lily pads, cattails

Animals: catfish, bass, turtle

d)

Plants: kapok tree, vines, orchids

Animals: monkeys, panthers, macaw

22.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
23.
An animal that eats only plants is an...
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
24.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
25.
Which of these organisms would receive energy from the snake?
a)
Plant
b)
Rabbit
c)
Mouse
d)
Hawk
26.
Temperature, light, air, water, and soil are all  _____  parts of the environment
a)
alive
b)
biotic 
c)
abiotic
d)
living
27.
A living or once-living organisms in an ecosystem is a
a)
population
b)
biotic factor
c)
abiotic factor
d)
community
28.
Which of the following is not an abiotic factor?
a)
sun
b)
temperature
c)
soil
d)
grass
29.
Very little sun reaches this part of the rainforest.
a)
equal
b)
earth
c)
floor
d)
carnivorous 
30.
Which two biomes have the least precipitation?
a)
tropical rain forest and temperate grasslan
b)
savanna and tropical dry forest
c)
tundra and desert
d)
boreal forest and temperate woodland
31.

Prairies and savannas are two examples of this land biome?

a)

Tundra

b)

Grassland

c)

Desert

d)

Taiga