Question

Name the process by which oxygen enters the cells from blood vessels. Define it​

Answer 1

Answer:

During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

Answer 2

Oxygen enter through respiratory system
Definition of respiratory system are -

The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants.