Energy Flow In Ecosystems - Biology Worksheet With Answers Page 5
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15A. a trophic level
B. a food chain
C. a food pyramid
D. a food web
13. Technology Enhanced Questions are not available in Word format.
14. Producers are autotrophic. That is, they are able to feed themselves by converting carbon dioxide from the
air and light energy from the Sun into food.
Consumers and decomposers are heterotrophic. This means that these organisms must obtain their food by
eating other organisms or organic matter.
The relationships among producers, consumers, and decomposers carrying out either autotrophic or
heterotrophic nutrition are identified through
A. food webs.
B. the periodic table.
C. feedback mechanisms.
D. Punnett squares.
15. What is the ultimate source of energy for all ecosystems?
A. secondary consumers
B. the Sun
C. primary consumers
D. plants
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