When a heterotroph takes in food, only a small percentage of the energy in that food is used for growth because a. some food is not digested and is eliminated as feces. b. some metabolites are excreted as urine. c. some energy is given off as heat. d. All of these are correct. e. None of these are correct.
Added by Holly M.
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Some food is not digested and is eliminated as feces - This is true, as not all the food consumed is broken down and absorbed by the body. Some of it is eliminated as waste. b. Some metabolites are excreted as urine - This is also true, as the body excretes waste Show more…
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