1 and 3 is right. 2 and 4 aren't really true.
Answer:
1- dilate
2- perfusion
Explanation
when blood pressure increase the arterioles dilate (become smaller) so that cells can absorb the oxygen from the blood easily. perfusion will be altered or slowed down. (The perfusion is the passage of fluid through the circulatory system. )
Answer:
They are usually off - tonrd in color
Explanation:
the defects are caused by the varying speeds of the molten plastic while it changes direction through the contours and bends in th mold