Which of the following best describes evolution? populations select different food sources due to competition changes in genetic structure of a population over time individuals with traits best suited for survival pass these to offspring process in which acquired characteristics are passed to offspring

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )

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: