Explanation:
Russian-American biochemist Phoebus Levene (1869-1940), who had discovered ribose sugar in 1909 and deoxyribose sugar in 1929, suggested the structure of nucleic acid as a repeating tetramer. He called the phosphate - sugar - base unit a nucleotide.
I think it’s lateral and medial but I’m not sure
No! After the dinosaurs died out, nearly 65 million years passed before people appeared on Earth. However, small mammals (including shrew-sized primates) were alive at the time of the dinosaurs. Many scientists who study dinosaurs (vertebrate paleontologists) now think that birds are direct descendants of one line of carnivorous dinosaurs, and some consider that they in fact represent modern living dinosaurs. This theory remains under discussion and shows that there is still much we don't know about dinosaurs.
While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases oxygen
