The baroreceptors in the carotid sinus and aortic arch are sensitive to which of the following?

Changes in arterial pressure

Baroreceptors are present in carotid sinus, and their main function is to maintain homeostasis. They are responsible for maintaining the blood pressure. They can sense the changes in pressure of the walls of the arteries. This way blood pressure is regulated.

Since the main function is related to blood pressure, other options are incorrect.

i believe the answer is a or 1

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: