Which macromolecule is not obtained from our food and where we do get it from

amino acids or essential amino acids

It is obtained balance diet like meat , eggs which contains protien

b. the carbon cycle ensures living things have a source of hydrogen

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

can i get the brainliest pls

explanation: