Describe what you see on the end of the pencil stirrer. Study the cereal box to determine what the substance on the end of the magnet might be.

answer; i believe the correct answer is (sporophyte);

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.

a symbiotic relationship with the mitochondria