Dear Reader,
Hello again, as winter passes and the first rays of the warming sun are melting away the accumulation of snow on top of the roof of my house. I can't help but correlate this process of accumulation and what seems miraculous vanishing of material on my rooftop to the process called metabolism, which our body goes through. We humans, belonging to a class of heterotrophic organisms, require a constant, complex supply of organic compounds from plants and animals, to supply our body with essential nutrients in order to provide the energy to sustain life.