Question

_________ is the process that takes place in living beings while breathing in and out.

Answer 1

Breathing is the process of taking in oxygen and giving out carbon dioxide in this usually involves lungs and nose pharynx. this helps in providing better thinking, better sleep, mental stability digestion of food

Complete answer:
Every function in our body requires oxygen not only breathing but also digestion of food, movement of muscle, thinking etc.
Breathing is a process in which oxygen is taken in which helps in production of energy and carbon dioxide is breathed out. The process starts with inhaling air through the nostrils and passing through Mouth then via the esophagus where it reaches lungs and gets purified.
Inspiration is the process of taking in oxygen. During inspiration the volume of the lungs increases as the diaphragms expand and the pressure in alveoli decreases as the air rushes to lungs.
Expiration is a process of releasing carbon dioxide. During expiration the volume of the lungs decreases as the diaphragm’s contracts and the pressure in alveoli increases that releases the air.

Hence, respiration is the process in which oxygen is taken in and carbon dioxide is given out.

Note:
The process of respiration in plants occurs during day and night both. Whereas respiration occurs only during daytime photosynthesis takes place in which leaves consume the carbon dioxide and converts it to oxygen.