They can constrict or dilate because their walls are muscular.
Answer:
vitamin C deficiency.
Explanation: g o o g l e -
C. Verbal (non-oral) communication. Hope this helps. Have a great day. Please mark me brainliest!
The root word which means "red" is a. erythr/o.
Just think about biology - you should know that red blood cells are called erythrocytes, where you can obviously see that root word.
Leuk/o refers to white color, and the other two options do not refer to colors at all.
