Answer:
chemical composition,cells, tissues,organs,organ systems,organism.
Answer:
By bonding with each other.
Explanation:
Larger macromolecules are formed from smaller macromolecules by making bonds with each other. carbohydrate is a macromolecule which is formed from glucose which is a micromolecule. Proteins is also a macromolecule composed from amino acids while lipid is also a macromolecule that are formed from fatty acids. These small micromolecules join together forming covalent bonds with each other.
Organisms who happen to be best suited to an environment and reproduce most successfully will be consider successful in terms of natural selection.
Every offspring does not look alike they change with the generations