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I think It’s the skeletal system gives a body shape or form and helps you to both protect the support the entire organism bone Cartlidge tendons joints ligaments and other tissues
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.
Answer: here please read the Difference between Natural gas and fresh air...
Explanation: