Examlex
Which of the following relate to formal theories:
Natural Food Chains
A sequence of organisms each dependent on the next as a source of food, demonstrating the flow of energy and nutrients in an ecosystem.
Conversion Efficiency
A measure of how effectively a system converts input energy into output energy or work.
Food Pyramid
A visual representation to illustrate the recommended balance of different food groups in a healthy diet.
Available Energy
The portion of energy in a system that can be used to perform work.
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