DNA, with only 4 nucleotides repeating along a sugar phosphate backbone, could account for the diversity of life because A) It was a code, and it was very long.

B) it is still a mystery.

C)it was surrounded by complex proteins in chromosomes.

D)life isn't really that diverse.

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation:

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves