A food chain shows the transfer of 1._______ from one organism to the next, beginning with a 2._________, which obtains its energy from the 3. __________.
1. energy / 2.producer / 3. sun
A _____ __ ______ has levels which represent the number of each species in a food chain.
pyramid of numbers
A _______ is an organism that gets its energy from dead or waste organic.
decomposer
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