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Ecosystems

Total questions: 29

Worksheet time: 15mins

Name
Class
Date
1.

1. Why are there so many different habitats?

a)

A. Different living things build different habits to fit their needs.

b)

 B. Each place has its own elevation, climate, and land

c)

C. Elevation, climate, and land is the same everywhere on Earth.

d)

D. Living things move from one habitat to another.

2.

2. Which of these choices is a habitat?

a)

A. A grassy field with prairie dogs, grasshoppers and wheat plants.

b)

B. An icy canyon with no living things in it.

c)

C. A baseball game with a pitcher, batter, and catcher.

d)

D. A swamp with just flies

3.

3. Why don’t polar bears normally live in Hawaii?

a)

A. They need a habitat with more access to water.

b)

B. They need a habitat with a colder climate.

c)

C. They need a habitat with fewer plants.

d)

D. They need a habitat with more fish.

4.

4. Which statement is true?

a)

A. All living things live in the same habitat.

b)

B.  Living things survive best where all their needs are met.

c)

C. No two living things share the same habitat.  

d)

D. Living things survive best where one of their needs are met.

5.

5. How is an African Savanna different from the Tundra in Northern Canada?

a)

A. They have different latitudes and climates.

b)

B. A savanna has a higher elevation than a tundra does.

c)

C.  One has plants, and the other one has animals.

d)

D. A savanna can change, but a tundra stays the same.

6.

6. If you were an amphibian, like a salamander, and you needed to lay your eggs, where would be the best place to do so among these choices?

a)

a. in a Taiga, or coniferous forest.

b)

b. in a tropical desert.  

c)

c. in a lake or pond ecosystem.

d)

d. in a river or stream ecosystem.

7.

7. Which choice best describes the difference between a desert and a prairie?

a)

a. Deserts have reptiles, but prairies do not.

b)

b. Deserts do not have reptiles, but prairies do have them.

c)

c. Deserts are in warmer places than prairies are.

d)

d. Prairies are in warmer places than deserts are. 

8.

8. Your family wants to take a trip in the fall to see the leaves change color. Where should you go?

a)

a. to Brazil in the tropical rainforest

b)

b. to the Blue Ridge Mountains of NC in a deciduous forest.

c)

c. to the American Southwest in the Sonora Desert

d)

d. to Central Canada in a coniferous forest.     

9.

9. A plant that requires a humid environment would do well in a desert.

a)

a. Yes, because humid is hot.

b)

b. Yes, because they could adapt.

c)

c. No, because deserts are too far north.

d)

d. No, because deserts are too arid and dry.

10.

10. You have decided you want to plant some deciduous trees.  Where is the best place to do it?

a)

a. The Tundra because it could use some trees.

b)

b. The African Savanna because the herds would like it.

c)

c. The Temperate Forest because they belong there.

d)

d. The desert because they belong there.   

11.

11. Which organism is a producer?

a)

A. frog

b)

B. mushroom

c)

C. grass

d)

D. lizard

12.

12. Which is most responsible for breaking down dead plants and animals and returns the nutrients back into the soil?

a)

A. water

b)

B. bacteria

c)

C. fish

d)

D. insects

13.

13. Which is an example of a decomposer?

a)

A. hawk

b)

B. mouse

c)

C. flower

d)

D. mushroom

14.

14.  What are the two main sources of energy for living things?

a)

A. the sun and moon

b)

B. electricity and gasoline

c)

C.  water and some sort of food

d)

D. food and rest

15.

15.  What is the main difference between a producer and a consumer?

a)

A. Consumers make their food, but producers get their food from other living things.

b)

B. Producers make their food, but consumers get their food from other living things.

c)

C.  Producers are part of a food chain, but consumers are part of a food web.

d)

D. Consumers are part of a food chain, but producers are part of a food web

16.

16. How would the woodpecker population in a forest area most likely be affected if a housing development is built in that area?

a)

A. They would produce more offspring.

b)

B. They would change the color of their feathers.

c)

C. They would experience a decrease in available food.

d)

D. They would experience a decrease in competition.

17.

17. 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)

A. The ecosystem will become overpopulated with snakes.

b)

B.  There will be a decrease in the population of snakes in the ecosystem.

c)

C. The nutrition of the soil in the ecosystem will decrease.

d)

D. More types of plants will begin growing in the ecosystem.

18.

18. As more people have moved to the beach, the sea turtle population has decreased. Which is most likely the cause of this decrease?

a)

A. tropical storms

b)

B. increase in predators

c)

C.  habitat loss

d)

D. warmer temperatures

19.

19. Which will most likely cause a decrease in predator populations?

a)

A. an increase in prey populations

b)

B. a decrease in prey populations

c)

C.  a decrease in decomposers

d)

D. an increase in producers

20.

20. A simple food chain includes hawks, lizards, and insects. Which will most likely happen to the lizard and hawk populations if a pesticide is sprayed to kill the insects, and the lizard and hawk populations cannot find other food in this ecosystem?

a)

A. Both the lizard population and the hawk population will increase.

b)

B. Both the lizard population and the hawk population will decrease.

c)

C. The lizard population will increase, but the hawk population will decrease. 

d)

D. The lizard population will decrease, but the hawk population will increase. 

21.

What do earthworms, slugs, and mushrooms have to do with soil?

a)

They all live in the soil

b)

They all help organisms decompose into the soil

c)

They all are a vital part of the ecosystem

d)

All of the above

22.
An ecosystem is made up of _______ and ________ things.
a)
Living and nonliving
b)
Alive and dead
c)
Plants and animals
d)
Land and water
23.
Any characteristic that helps an organism survive in its ecosystem is an ____________. 
a)
Niche
b)
Habitat
c)
Adaptation
d)
Organism
24.
Which of these rabbits would be able to survive in the hot grasslands?
a)
Jackrabbit with long ears
b)
Snowshoe hare with short ears
25.
Which of the following is an example of an interaction between a living and nonliving organism?
a)
a snake using a mouse for food
b)
a worm using the soil as shelter
c)
a bird using an insect for food
26.
A deer eats from Farmer McClard's cornfield. A flood destroyed the field of crops. What will happen to the deer now that the corn is destroyed?
a)
The deer will plant more crops.
b)
The deer will leave the area to find food.
c)
None of the Above
27.
Which of these organisms is a producer?
a)
strawberries
b)
insect
c)
mouse
d)
owl
28.
What is a source of energy for the mouse?
a)
strawberries
b)
insects
c)
other mice
d)
owls
29.
The parts of the food chain in the picture are out of order.  Which picture should be last in the food chain shown?
a)
snake
b)
sun
c)
carrot
d)
rabbit