These models represent molecules commonly found in living organisms, with each element shown in a different color. what do all of these molecules have in common? glutamine (an amino acid) palmitic acid (a fatty acid) porphyrin (a pigment) chlorophyla (o pigment) carbon hydrogen o oxygen nitrogen magnesium all their building blocks come from sugars. they all contain chains of carbon and hydrogen they are all building blocks of carbohydrates, their carbon and hydrogen can be obtained from sugar.

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the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

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