You have just received a grade on your first major examination in biology, and it is not as high as you had hoped. You wanted an "A" and you earned a "C." You talk to your professor and do a lot of thinking about
what might have gone wrong. Perhaps your mistake was reviewing your notes only before the exam rather
than every night. Or perhaps you made some other mistakes.

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:

the answer is 95 degrees

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.