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