WorksheetsEcosystems
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
Which terrestrial ecosystem has warm, humid conditions and a large variety of plants and animals?
a)
Estuary
b)
Grassland
c)
Deciduous Forest
d)
Tropical Rainforest
2.
Which is most accurate in describing an estuary ecosystem?
a)
High salt levels keep the water clear of nutrients and proteins.
b)
Freshwater mixes with saltwater to provide a nutrient-rich
environment.
environment.
c)
Animals and plants compete for food due to pollution from
surrounding areas.
surrounding areas.
d)
Cold water mixes with saltwater to create a cooling effect that
encourages growth.
encourages growth.
3.
Which is most similar to a grassland ecosystem?
a)
A lake
b)
A plain
c)
A forest
d)
A swamp
4.
Which best describes most estuaries?
a)
They are natural water purification systems.
b)
They provide freshwater for plants and animals.
c)
They are areas that prevent ocean water from coming inland.
d)
They provide soil that has not been affected by pollution.
5.
Which is true of a tropical rainforest?
a)
They are found only in South America.
b)
Only a few different species of plants and animals can be found there.
c)
The tree canopy causes only a small amount of sunlight to reach the
ground.
ground.
d)
Each organism found in a rainforest can also be found in a deciduous
forest.
forest.
6.
Which area is coldest?
a)
Desert
b)
Ocean
c)
Tundra
d)
Taiga
7.
The Russian thistle, commonly known as the tumbleweed, is a big, round plant with many
branches and short, stiff leaves. This plant spreads a large number of seeds when it breaks off from its stalk. The thistle is most likely found in what kind of environment?
branches and short, stiff leaves. This plant spreads a large number of seeds when it breaks off from its stalk. The thistle is most likely found in what kind of environment?
a)
swamp
b)
praire
c)
forest
d)
tundra
8.
This animal needs to live in a damp area. What is the best place for it to live?
a)
an area with large rodents
b)
an area with brush
c)
an area with a swamp
d)
an area with dry sand
9.
Screech owls nest in holes in trees. They eat mice and crickets. Where would a screech owl most likely live?
a)
a beach
b)
a forest
c)
a desert
d)
a rainforest
10.
How are all ecosystems similar to forest ecosystems?
a)
All ecosystems have plenty of trees for consumers to eat.
b)
All ecosystems provide nutrient-rich soil for the producers.
c)
All ecosystems provide diverse populations of small animals that
consumers can eat.
consumers can eat.
d)
All ecosystems have an appropriate amount of sunlight to support the
producers living there.
producers living there.
11.
What is the difference between an ocean ecosystem and a lake ecosystem?
a)
Ocean ecosystems have less plant life than lake ecosystems.
b)
Ocean ecosystems have less animal life than lake ecosystems.
c)
Ocean ecosystems have saltwater and lake ecosystems have
freshwater.
freshwater.
12.
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.
13.
Which ecosystem averages the least amount of annual precipitation?
a)
Estuary
b)
Grassland
c)
Salt Marsh
d)
Forest
14.
Mangrove trees are common in wetlands. Which condition most likely keeps mangrove trees from growing in deserts?
a)
The ground is too dry.
b)
The winds are too strong.
c)
The air gets too cold at night.
d)
There is too much light during the day.
15.
Clara says that her school is in a desert. Which fact about her schoolyard most helps her claim?
a)
The schoolyard has few trees.
b)
The schoolyard has rocks and sand.
c)
The schoolyard gets warm in the summer.
d)
The schoolyard gets little rain during the year.
16.
Plants in a forest need to obtain nutrients from the soil to survive. How do most of the nutrients get back in the soil once the forest plants have used them for growth?
a)
Organic matter recycles from dead organisms.
b)
Commercial fertilizers are applied by humans.
c)
Solar radiation reaches the ground surface.
d)
Rainwater drips off of living organisms.
17.
Which is a consumer that only eats producers?
a)
Bird
b)
Snail
c)
Grass
d)
Mushroom
18.
In the food web, which organisms are producers?
a)
frog and rat
b)
rat and leaves
c)
leaves and berries
19.
How do decomposers recycle dead trees?
a)
by releasing oxygen
b)
by turning them into soil
c)
by turning them into producers
d)
by making them food for consumers
20.
Which best describes why decomposers can be called “nature’s recyclers”?
a)
Decomposers help to recycle air in ecosystems.
b)
Decomposers help to recycle nutrients in the soil.
c)
Decomposers help to recycle trash in ecosystems.
d)
Decomposers help to recycle water in ecosystems.
21.
Which best describes the role of a first-level consumer in an ecosystem?
a)
Consumers eat producers and pass the energy along in an ecosystem.
b)
Consumers eat scavengers and pass the energy along in an
ecosystem.
ecosystem.
c)
Consumers eat decomposers and pass the energy along in an
ecosystem.
ecosystem.
d)
Consumers eat other consumers and pass the energy along in an
ecosystem.
ecosystem.
22.
Which type of organisms change dead material into nutrients for other
animals to use?
animals to use?
a)
composer
b)
decomposer
c)
frogs
d)
herbivore
23.
Which organisms directly use light energy from the sun to obtain food?
a)
producers
b)
decomposers
c)
carnivore
d)
herbivore
24.
A brown bear eats a variety of foods including berries, insects, and small animals. Which best describes a brown bear?
a)
producer
b)
herbivore
c)
carnivore
d)
omnivore
25.
In the food web below, which is an example of a consumer?
a)
tree
b)
grass
c)
rabbit
d)
ocean
26.
Which is a group of producers that could be found in a forest?
a)
cacti, shrubs, and yucca
b)
deer, squirrels, and mice
c)
trees, grasses, and vines
d)
lizards, scorpions, and rodents
27.
Which organism is best classified as a consumer?
a)
worm
b)
human
c)
algae
d)
mushroom
28.
A group of frogs live together near a small pond. The frogs compete with each other most for which resource?
a)
air
b)
insects
c)
plants
d)
sunlight
29.
A developer buys land on a wooded mountain to build hotels for people visiting a new winter sports center. How will this most likely affect birds living in the area?
a)
Birds will become completely dependent on humans for food and
water.
water.
b)
Birds will have more places to build nests as more trees will be
planted.
planted.
c)
Population diversity and the number of birds will increase as more
food and water resources become available.
food and water resources become available.
d)
Population diversity and the number of birds will decrease as fewer
food and water resources become available.
food and water resources become available.
30.
Which term defines animals that obtain food by hunting other animals?
a)
predators
b)
prey
c)
producers
d)
scavengers
100 %
