I would think that it is B or C
Answer:2.6 g/cm3
Explanation: The equation for density is p = m/V where p is density, m is mass, and V is volume. This gives us 210g/81cm3 = 2.6 g/cm3.
Cell membrane hope this helps
Answer:
Humans have a variety of effects on the physical environment, including overcrowding, pollution, the use of fossil fuels, and deforestation. Climate change, soil erosion, poor air quality, and undrinkable water have all been driven by such changes.
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The energy originated from the animal when it was alive