Why is only 10% of energy transferred from one trophic level to the next? (1 point)
Responses
because producers need most of the energy for photosynthesis
because producers need most of the energy for photosynthesis
because energy is lost to the environment as heat between levels
because energy is lost to the environment as heat between levels
because energy is used for metabolism at each level
because energy is used for metabolism at each level
because energy is used up when consumers eat producers
because energy is used up when consumers eat producers
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