The __________Blank is the layer of the alimentary canal wall that absorbs nutrients.Multiple Choicesubmucosamucosamuscular layerserosa

The correct answer is mucosa.

The mucosa is the innermost layer of the alimentary canal wall and is responsible for the absorption of nutrients. It contains epithelial cells that help in the digestion and absorption of food, as well as in secreting mucus to protect the lining of the digestive tract. The other layers—submucosa, muscular layer, and serosa—serve different functions in the overall structure of the alimentary canal. The submucosa provides support and contains blood vessels and nerves, the muscular layer is responsible for peristalsis and movement of food, and the serosa is the outer layer that protects the digestive organs. Thus, the mucosa plays a crucial role in nutrient absorption.