Question

What is the use?
why do we need blood?
why do we need kidneys?
name a part that is a part of respiratory system.
why do we need skull?

Answer 1

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Your answer is given below (✷‿✷)⬇️⬇️⬇️

Blood brings oxygen and nutrients to all the parts of the body so they can keep working. Blood carries carbon dioxide and other waste materials to the lungs, kidneys, and digestive system to be removed from the body.

Your kidneys are vital for your survival. They have several extremely important functions. Their main tasks are to filter waste substances out of your blood and balance the levels of salts and water in your body.

The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs.

The human skull is the bony structure that forms the head in the human skeleton. It supports the structures of the face and forms a cavity for the brain. Like the skulls of other vertebrates, it protects the brain from injury.