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.
B. Preventing heart attacks.
"Aspirin interferes with your blood's clotting action. ... Then, a blood clot can quickly form and block the artery. This prevents blood flow to the heart and causes a heart attack. Aspirin therapy reduces the clumping action of platelets — possibly preventing a heart attack."
Answer:1.Keep track of how much you eat and don't eat more than you expend.
2.Eat a wide variety of foods every day.
3.Base your diet on cereals and whole grains.
4.Increase fruit and vegetable consumption.
5.Meet calcium requirements to ensure healthy teeth and bones.
6.Reduce fat, salt and sugar intake.
7.Drink plenty of water.
Explanation: