Energy flow in an ecosystem, B.Sc III paper III unit II

The cycle of energy is based on the flow of energy through different trophic levels in an ecosystem. ... At the first trophic level, primary producers use solar energy to produce organic material through photosynthesis. The herbivores at the second trophic level, use the plants as food which gives them energy.

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Видео Energy flow in an ecosystem, B.Sc III paper III unit II канала life science zoology