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Ecosystem Energy Flow
Test Description: This tests your understanding of how energy flows through ecosystems and supports life.
Instructions: Answer all questions to get your test result.
1) The energy that supports all life in a forest by providing its initial energy source comes from:
A
nutrients from the soil
B
light from the sun
C
heat from the sun
D
water from the sky
2) Which of the following lists a functionable food chain?
A
rosebush, deer, wolf
B
oak tree, squirrel, bacteria, elephant
C
mushroom, hawk, eagle
D
grass, algae, rabbit, fox
3) All of the following are true about ecosystems EXCEPT for:
A
consumers eat to get their energy
B
producers make their own food
C
water provides all of the energy for the ecosystem
D
producers require sunlight
4) Mushrooms must have _____ to survive.
A
carbon dioxide
B
sunlight
C
all of the above
D
soil and animal or plant waste
5) Which of the following is a decomposer?
A
soil
B
mold
C
algae
D
cactus
6) All of the arrows in food chains and food webs show:
A
the level of cell complexity
B
what organisms eat
C
how every organism gets its energy
D
how water is transferred
7) Algae is a:
A
It can be a producer or decomposer.
B
consumer
C
decomposer
D
producer
8) Which of the following shows a list completely made up of decomposers?
A
tree, flower, bush
B
mold, mushroom, algae
C
bacteria, mushroom, mold
D
alligator, hawk, chipmunk
9) Which of the following would correctly fit with this list of organisms, given how they acquire energy?: kelp, seaweed, algae
A
maggots
B
butterfly
C
corn
D
fish
10) Which could correctly complete this food chain: flower, butterfly, _____, eagle
A
mushroom
B
rose
C
lizard
D
eagle
*select an answer for all questions
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