Verified answer

1. What is the main job of the digestive system?

ANSWER

• The maim job of the digestive system is to break down food so that our body can use it.

2. a. Identify two ways by which food is broken down.

b. How do these differ from each other?

ANSWER

A. Two ways of your body uses to break down

• Mechanical digestion and Chemical digestion.

3. Why is the digestive system likened to a long tube?

ANSWER

• Because, it is a narrow in some parts and wide in others and your digestive system is likened to a long tube because it consists of the digestive tract, also known as the alimentary tract or alimentary canal and basically resembles a long tube through which food you have eaten passes. in that tube the food you have consumed gets absorbed and nutrients extracted and used for the energy you need and for building and repairing your body cells.

#CarryOnLearning

Answer:

1. The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.
2. There are two kinds of digestion: mechanical and chemical. Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.
3. The digestive system is so long to be able to digest food. This helps digestion by allowing time and space to break down food, absorb nutrients, and absorb water. The longest section of the digestive system is the small intestine. In the small intestine, the nutrients from the food are absorbed.

Explanation:

SORRY HINDI KO PO ALAM ANG B.

PLZ FOLLOW ME AND PA BRAINLIEST PO SANA