Answer:
a hydrogen, an α- carboxyl group, an α-amine group, and an R-group, sometimes referred to as a side chain.
Explanation:
Ribosomes consist of two major components: the small ribosomal subunits, which read the RNA, and the large subunits, which join amino acids to form a polypeptide chain. Each subunit comprises one or more ribosomal RNA (rRNA) molecules and a variety of ribosomal proteins (r-protein or rProtein).
Angiosperms have seeds protected by an ovary which develops into the fruit.
Stomata. Abscisic acud is releases in exrreme conditions when water conservation is more important that water loss amd so stomatal pore closes when ABA gets attached to receptors on membrane of guard cells
