Question

Why do living things respire? WHAT ORGANS do they use

Answer 1

Answer: Living beings respire to keep the supply of oxygen continuous, to create or produce energy.

Living beings use different methods or organs such as gills, lungs, tracheal tubes, skin, etc.

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Answer 2

Hello there,

Respiration as generally mentioned is referred to the exchange of O2 and CO2 but it is actually more than that and the exchange of these two gases are but a manifesatation of respiration

Respiration is essentially yielding out of energy from food inside cells, it can be of two types aerobic and anaerobic based on presence of absense of oxygen

As far as organs are concerned then one should note that respiration is a seperate process which occur in every living cell, what does take organs to perform is the gaseous exchange which is called as Breathing, there is a major difference between the two

As far as breathing is concerned it makes the use of lungs