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WorksheetsLife Science Review
Total questions: 33
Worksheet time: 3hrs 41mins
Name
Class
Date
1.
What is the role of plants in an ecosystem?
a)
decomposer
b)
producer
c)
consumer
2.
What is the role of the owl?
a)
herbivore
b)
omnivore
c)
carnivore
3.
What is the role of the grasshopper?
a)
herbivore
b)
omnivore
c)
carnivore
4.
What is the role of the mouse?
a)
herbivore
b)
omnivore
c)
carnivore
5.
What is the role of the fox?
a)
herbivore
b)
omnivore
c)
carnivore
6.
What is the role of the rabbit?
a)
herbivore
b)
omnivore
c)
carnivore
7.
What role do decomposers play in a food chain?
a)
break down dead plants and animals into nutrients
b)
produce their own energy through photosynthesis
c)
consume living plants and animals for energy
d)
prevent the flow of energy in a food chain
8.
If additional snakes were introduced into this ecosystem, there will most likely be an immediate decrease in the……………..
a)
frogs
b)
birds
c)
hawks
d)
deer
9.
If additional birds were introduced into this ecosystem, there will most likely be an immediate decrease in the……………..
a)
rabbits
b)
caterpillars
c)
hawks
d)
deer
10.
An increase in the water beetle population would cause an increase in which organism?
a)
algae
b)
frog
c)
snail
d)
small fish
11.
The oxpecker bird and the rhinoceros have a relationship. The oxpecker receives protection and obtains food from the ticks and other pests infecting the rhino’s skin. The rhino receives in return cleaning and early warning of approaching danger. Which symbiotic relationship does this represent?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predator-prey
12.
An increase in the water beetle population would cause a decrease in which organism?
a)
algae
b)
frog
c)
snail
d)
small fish
13.
European rabbits are introduced into this ecosystem. They eat grass. What is their location?
a)
Location A
b)
Location B
c)
Location C
d)
Location D
14.
Cane toads are introduced into this ecosystem. They eat grasshoppers. What is their location?
a)
Location A
b)
Location B
c)
Location C
d)
Location D
15.
Grizzly bears are introduced into this ecosystem. They eat wolf cubs. What is their location?
a)
Location A
b)
Location B
c)
Location C
d)
Location D
16.
Where do plants get their energy?
a)
sun
b)
carbon dioxide
c)
water
d)
oxygen
17.
What is the main source of energy in an ecosystem?
a)
water
b)
plants
c)
sun
d)
soil
18.
Wrasse fish are fish that eat fish lice off of grouper. Fish lice feast on the blood of fish. They can cause infection and spread disease. What type of relation does the wrasse and the fish lice have?
a)
mutualism
b)
parasitism
c)
predator-prey
19.
Wrasse fish are fish that eat fish lice off of grouper. Fish lice feast on the blood of fish. They can cause infection and spread disease. What type of relation does the grouper and the fish lice have?
a)
mutualism
b)
parasitism
c)
predator-prey
20.
Wrasse fish are fish that eat fish lice off of grouper. Fish lice feast on the blood of fish. They can cause infection and spread disease. What type of relation does the grouper and the wrasse fish have?
a)
mutualism
b)
parasitism
c)
predator-prey
21.
Select the food chain from the four choice below that correctly connects each organism with its food or source of energy.
a)
algae → sharks → crabs
b)
algae ← crabs ← sharks
c)
algae ← sharks ← crabs
d)
algae → crabs → sharks
22.
If all the producers were removed from an ecosystem, how would a typical food chain be affected?
a)
There would be more decomposers in the ecosystem.
b)
All organisms would eventually die.
c)
There would be more carnivores in the ecosystem.
d)
There would be more herbivores in the ecosystem.
23.
Grasshoppers, banana trees, frogs, and jaguars are organisms found in a tropical rainforest ecosystem. Which activity in a tropical rainforest ecosystem increases the amount of energy available to living things?
a)
jaguars search for macaws and other birds for food
b)
banana trees change sunlight into food and grow larger
c)
frogs feed on the flies that swarm around the water
d)
frogs use the sunlight for energy
24.
This food web shows some of the organisms in an African savannah. Which statement describes the flow of energy shown in this food web.
a)
Energy flows from cheetahs to wildebeests and rabbits.
b)
Energy flows directly from cheetahs to red oat grasses.
c)
Energy flows from red oat grasses to wildebeests and rabbits.
d)
Energy flows from red oat grasses to cheetahs.
25.
Which organism uses energy gained from plants?
a)
deer
b)
clover
c)
none
d)
bacteria
26.
Which organism uses energy directly from water?
a)
deer
b)
clover
c)
none
d)
bacteria
27.
Which organism uses energy directly from the sun?
a)
deer
b)
clover
c)
none
d)
bacteria
28.
Which organism uses dead matter for energy?
a)
deer
b)
clover
c)
none
d)
bacteria
29.
During the winter months in Ohio, daylight hours are shorter and less energy is available in ecosystems. Which statement explains why less energy is available in ecosystems during the winter months?
a)
Consumers are less active.
b)
Decomposers break down more waste.
c)
Consumers hunt more prey
d)
Producers make less food
30.
Which statement describes the flow of energy through this ecosystem?
a)
Hawks get energy from stinkbugs
b)
Stinkbugs provide energy to the mice
c)
Herbivores provide energy to hawks and toads
d)
Producers get energy from mice and stinkbugs
31.
What process allows energy from the sun to travel to all the organisms in an ecosystem?
a)
photosynthsis
b)
symbiosis
c)
transpiration
d)
respiration
32.
The sun’s energy is most directly transferred to bears through which path?
a)
Path A
b)
Path B
c)
Path C
d)
Path D
33.
The Burmese python is a non-native snake that was introduced into the Everglades ecosystem in the 1980’s by pet owners that no longer wanted to care for them. Burmese pythons eat marsh rabbits and fox squirrels. After their introduction, the population of Burmese pythons increased quickly. Which graph would be a good prediction of changes resulting from the introduction of the Burmese python?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
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