Smoking reduces the surfactant layer in the alveoli. This would cause which of the following to occur? (2 points) A. Depressed macrophage activity

B. Destroyed red blood cells

C. Reduced ability of gases to diffuse through the water layer

D. Reduced ability of gases to enter or exit the alveolar space

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:

this is more of a statement than a question. is there answers to go along with this, or is it opinion based?