Answer:
Energy Flow in Ecosystem. Energy moves life. 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.
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The possible effects of a formal system entering an area are the following: sea breeze, a change in air temperature.
The answer is T: cells, tissue, organs, organ system
The answer is B. bone marrow :)