Answer:
4.) C
Explenation
im sure i was right i already answer this question
Answer: B. Closed
In a closed circulatory system is the one in which the blood is circulated to all the parts of the body of the organism through vessels of different length and width. In this system the blood is pumped from the heart through blood vessels where it is transported to different organs and cells of the body instead of filling up the body cavity.
When there are double lines in the lanes means you can not change lanes.. only when there is breaks in the lines can you change lanes
