It transfers from being to being, from the sun, where it starts, to every other being after.
Hope this helped.
Mammals. I am no scientist, but I think that they are closer to mammals due to the fact that they are warm-blooded, and they raise their young. Reptiles are cold blooded and usually leave their offspring to fend for themselves.
Answer:
d)organism,system,organ, tissue is from smallest to largest
... whereby the body procedures glucose from amino acids and glycerone molecules