Energy and matter flow within biological systems from basal trophic levels to higher levels, which involves energy loss as heat.
An organism can be considered as a biological system where energy and matter flow during its lifespan.
In a consumer (e.g., a wolve), energy and matter flow from eating other organisms, a process where energy is mainly lost as heat.
In conclusion, energy and matter flow within biological systems from basal trophic levels to higher levels, which involves energy loss as heat.
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