Cleaning/preparation I know that these are correct because i put the same answer on my test and they were correct
Chordates have a backbone...humans, bony fish, snakes, birds, frogs, all mammals.
Answer:
Explanation:
nucleic acid is a polymeric macromolecule made up of repeated units of monomeric 'nucleotides' composed of a nitrogenous heterocyclic base which is either a purine or a pyrimidine, a pentose (five carbon) sugar (either ribose or 2′-deoxyribose), and one to three phosphate groups.
yes, because it is in bloodline
.......................IIok