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Chapter 4 Test Part 1 Of 2
Test Description: Review
Instructions: Answer all questions to get your test result.
1) During photosynthesis, plants give off
A
carbon dioxide
B
nitrogen
C
oxygen and sugar
D
water vapor
2) In one ecosystem, snakes eat birds, plants make fruit, and birds eat fruit. Which is the correct food chain?
A
bird--plant--snake
B
plant--bird--snake
C
snake--bird--plant
D
snake--plant--bird
3) Why must pollution be regulated?
A
Pollution is good for the environment.
B
Too much pollution can damage the environment.
C
It does not need to be regulated.
D
More pollution should be created.
4) During cellular respiration, organisms give off
A
nitrogen
B
carbon dioxide
C
sugar
D
oxygen
5) What is the role of chlorophyll in photosynthesis?
A
Who cares??
B
It releases energy to the sun.
C
Consumers use it to make their own food.
D
It traps the energy from the sun. The energy is then used to make food.
6) Purple loosestrife is a plant that people brought from Europe. It grows thickly in wetlands. How might this plant harm the wetlands ecosystem?
A
It might give more food for other organisms.
B
It might take the other plants’ resources, which might cause the native plants to die.
C
It might make the wetlands more beautiful.
D
It might provide more shelter for organisms.
7) Which event would cause an ecosystem to change quickly?
A
an earthquake
B
a rock becoming soil
C
a. a climate change
D
a lake drying up
8) When organisms share limited resources, there is
A
extinction.
B
competition.
C
mutation.
D
an extra resource.
9) What is the role of a tree in a food chain?
A
It eats other organisms.
B
It cannot make its own food.
C
It uses the sun’s energy to make food.
D
It breaks down wastes and dead organisms.
10) Which describes both a food chain and a food web?
A
both contain multiple ways that energy flows
B
both contain only consumers
C
both must include a carnivore
D
both began with a producer
*select an answer for all questions
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