What must happen before crossing over can occur in meiosis

Which label correctly identifies what x represents in the concept map?

What shows carbohydrates in size of smallest to largest

Brainlest awardhow does smoking and arterial plaques increase the risk of hypertension? (2 points) select one: a. both increase blood volume. b. both decrease blood volume.c. both expand the diameter of the blood vessels. d. both constrict the diameter of the blood vessels.