Digestion needs the help of two more systems in body to provide energy from food. Which are these and how do they help?

Digestion is one of the most important processes in the body. It is the process by which food is broken down into nutrients that the body can use for energy. However, digestion cannot happen without the help of two other systems in the body: the circulatory system and the respiratory system.

The circulatory system helps digestion by transporting nutrients from the digestive system to the rest of the body. Once food has been broken down into nutrients, it is absorbed into the bloodstream through the walls of the small intestine. The circulatory system then carries these nutrients to cells throughout the body, where they can be used for energy or stored for later use.

The respiratory system helps digestion by providing oxygen to the cells of the digestive system. Oxygen is needed for the chemical reactions that break down food into nutrients. Without oxygen, these reactions cannot happen, and digestion would not be possible. The respiratory system also removes carbon dioxide from the body. Carbon dioxide is a waste product of cellular respiration, and it can interfere with digestion if it is not removed.

In short, digestion, circulatory, and respiratory systems work together to provide energy from food. The circulatory system transports nutrients to cells, the respiratory system provides oxygen to the digestive system, and the digestive system breaks down food into nutrients that can be used by the cells.