Is there multiple choice? if not, I would say positivity.
Answer:
The answer is c
Explanation:
Answer:
C. Arteries carry oxygenated blood, while veins carry blood low in oxygen
Explanation:
Answer:
The muscularis externa layer
Explanation:
The muscularis externa layer has three layers of muscle. An innner oblique layer , a middle circular and an external longitudinal layer. The contraction of these muscle layers help to break up the food mechanically.
