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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
nitrogen
B
carbon dioxide
C
water vapor
D
oxygen and sugar
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
snake--plant--bird
C
snake--bird--plant
D
plant--bird--snake
3) Why must pollution be regulated?
A
More pollution should be created.
B
Too much pollution can damage the environment.
C
Pollution is good for the environment.
D
It does not need to be regulated.
4) During cellular respiration, organisms give off
A
nitrogen
B
carbon dioxide
C
oxygen
D
sugar
5) What is the role of chlorophyll in photosynthesis?
A
It traps the energy from the sun. The energy is then used to make food.
B
Consumers use it to make their own food.
C
Who cares??
D
It releases energy to the sun.
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 provide more shelter for organisms.
C
It might make the wetlands more beautiful.
D
It might take the other plants’ resources, which might cause the native plants to die.
7) Which event would cause an ecosystem to change quickly?
A
a lake drying up
B
a rock becoming soil
C
a. a climate change
D
an earthquake
8) When organisms share limited resources, there is
A
mutation.
B
extinction.
C
competition.
D
an extra resource.
9) What is the role of a tree in a food chain?
A
It cannot make its own food.
B
It eats other organisms.
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 must include a carnivore
C
both began with a producer
D
both contain only consumers
*select an answer for all questions
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