BiologyHardHigh School (11–12)Ecology and Environment › Ecosystems and Food ChainsAPA-LevelIBAP EAPCETBCECECUET UG
Created by StemPy LabWhich of these ecosystems does not depend on the Sun for its energy?
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← The grass of a meadow holds 41000 kJ of energy in each square metre in a year. Grasshoppers eat the grass, and frogs eat the grasshoppers. About 10 per cent of the energy passes at each step. What energy do the frogs get, in kJ for each square metre in a year?A student asks why a food chain in nature seldom has more than four or five trophic levels. Which answer is best? →
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