Answer:
Nucleic Acids
Explanation:
Nucleic acids link together to form DNA, which determines the different traits people have, directly relating to appearance.
I think the answer is transformation
Answer:
Francis Crick and James Watson
Explanation:
cause thats the answer
All organisms need energy to survive. It requires many units of lower trophic level organisms to feed the next trophic level. For example many first order consumers (fish) are required to feed one crocodile (top order consumer). This is because energy is lost as heat at each trophic level, so the energy available to the top feeding level is far lower than that of the producers (plants). This is what restricts the number of trophic levels in a food chain to four or five.
