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Flow Of Energy Through Ecosystems
Test Description: How does energy flow through an ecosystem?
Instructions: Answer all questions to get your test result.
1) Organisms that make their own food through photosynthesis or chemosynthesis:
A
consumer
B
producer
C
both 2 and 3
D
autotroph
2) The arrows in a food web show:
A
the direction the sun shines
B
which organism eats another
C
which direction the energy flows
D
order from smallest to largest
3) Only about __________ of the original energy is available to passed on at every trophic level.
A
20
B
10
C
50
D
100
4) Producers store ____________________ energy in the form of ____________ energy.
A
thermal, chemical
B
radiant, chemical
C
thermal, electrical
D
chemical, radiant
5) Organisms that must consume other organisms for food:
A
producers
B
chemotroph
C
heterotroph
D
autotroph
6) How are decomposers different from detritivores?
A
they are less complex
B
they are sessile
C
they are more complex
D
they are producers
7) A food chain always begins with a ____________________.
A
producer
B
plant
C
animal
D
consumer
8) Some organisms produce food through the process of chemosynthesis. These organisms do not need ___________ to make food and live.
A
sunlight
B
water
C
raw materials
D
minerals
9) A________________ consumer eats producers.
A
top
B
primary
C
tertiary
D
secondary
10) Omnivores eat:
A
plants only
B
animals only
C
jelly beans only
D
plants and animals
*select an answer for all questions
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