When you take the exit ramp off the expressway and merge onto the next road you see yellow lines driving the roadway what do the yellow lines tell you about the traffic flow

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive