What characteristics distinguish prokaryotic and eukaryotic cells A. Eukaryotes have membrane-bound organelles; prokaryotes do not B. Eukaryotic chromosomes are linear; prokaryotic chromosomes are circular C. Prokaryotic DNA is naked or nearly naked; eukaryotic DNA is usually heavily associated with protein D. All of these are correct

D

Explanation:

Eukaryotes are defined as having membrane bound organelles. If they don't have these it is a prokaryote. Prokaryotes have circular chromosomes called plasmids, eukaryotes have linear chromosomes. Prokaryotic DNA is not protected as there are no membrane bound organelles to protect it. Eukaryotes transcript DNA to make proteins.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.