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Chapter 7 Review
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Name 4 important abiotic factors that would be found in the same ecosystem
A
Soil, temperature, organisms, air
B
Water, plants, sunlight, temperature
C
Water, sunlight, soil, air
D
Plants, soil, air, sunlight
2) What enables an organism to be able to live in a very harsh environment?
A
Its adaptations
B
Its habitat
C
Its nutrients
D
Its location
3) Why do arctic hares and jackrabbits have different appearances?
A
Because they live in different environments and have adapted to their environment
B
Because they look different
C
Because they eat different food
D
Because they have different names
4) What makes adaptations occur?
A
Only male offspring develop adaptations
B
Each new generation develops new adaptations
C
Every other offspring will develop an adaptation
D
New adaptations occur when survival characteristics get passed along from one generation to another due to changing condition
5) If a species cannot adapt to changing conditions in its environment, what will happen?
A
The species will produce larger numbers of offspring
B
The species numbers will increase
C
The species will begin to die, the numbers will decrease, and the species could possibly become extinct
D
The species will not be affected
6) What do we call an organism that gets its energy by breaking down the remains of dead organisms?
A
Consumers
B
Producers
C
Decomposers
D
Activists
7) What do food chains and food webs have in common?
A
None of the above
B
Both are made of only two to three animals
C
Nothing
D
Food chains make up food webs
8) What does a food web look like? How would you recognize one?
A
Like a sea sponge, you will see holes all over it
B
Like a sea sponge, look to see if it is absorbent
C
Like a snake, you will see only one food chain in a food web
D
Like a spider web, you would see many food chains linked together
9) Energy decreases in a pyramid as you travel to higher levels. Why?
A
Because the energy gets used by each organism for life processes, so there is less energy from the original source to pass on
B
Because the energy just disappears
C
Because the animals have to climb the pyramid
D
Because the energy gets lost somewhere in the pyramid
10) If different species with the same needs live in the same environment, what will happen?
A
They will compete for the resources
B
They will change what they eat
C
They will share the resources
D
None of the above
11) Where do animals get the nitrogen they need?
A
From the water
B
From soil
C
From the plants they eat or animals that have eaten plants
D
From the air
12) Why are photosynthesis and respiration very important parts of the carbon cycle?
A
Photosynthesis and respiration are not related to the carbon cycle
B
Photosynthesis allows carbon to enter the air which allows organisms to breathe
C
Photosynthesis is not part of the carbon cycle
D
Photosynthesis takes carbon out of the air process it into oxygen and releases it into the air for organisms to breathe
13) Explain how the amount of water in an ecosystem affects the number of organisms that can live there
A
Limited water allows more organisms to live in an area
B
Limited water will allow a limited number of organisms to survive in that area
C
Water does not affect the number of organisms an area can support
D
None of the above
14) Explain how polluting an ecosystem can change the organisms that live there.
A
Pollution does not affect organisms
B
Pollution can change an organism’s environment, which can harm the organism
C
None of the above
D
Pollution only affects a small portion of ecosystems so organisms are rarely harmed
15) How can a forest fire benefit an ecosystem that contains trees that need high heat to release seeds?
A
The fire would offer the high heat the tree needs to release seeds for new trees to grow
B
It would not be beneficial; the fire would just burn down the trees
C
The fire would offer nutrients to the tree
D
None of the above
16) Name three types of adaptations
A
Structural, behavioral, hibernation
B
Structural, behavioral, body processes
C
Hibernation, structural, body processes
D
Behavioral, body processes, actual
17) Which are three examples of structural adaptations?
A
Birds beak, rabbits ears, dogs teeth
B
Dogs teeth, bird building a nest, rabbit ears
C
Birds beak, dog barking, cat meowing
D
Hibernation, birds beak, dogs bark
18) Which are three types of behavioral adaptations?
A
Cat meow, hibernation, bird building a nest
B
Hibernation, birds beak, dogs bark
C
Dogs teeth, birds beak, cat meow
D
Bird building a nest, dog growling, cat hissing
19) Which are three types of body process adaptations?
A
Bird building a nest, dog barking, cat meowing
B
Hibernation, dog barking, bird building a nest
C
Hibernation, photosynthesis, digestion
D
Hibernation, photosynthesis, dog barking
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