Photosynthesis is important to living organisms because:
Provides the plant with the glucose it requires for its subsistence from the absorption of carbon dioxide, water and sunlight, <u>which additionally produces oxygen, an essential element for living beings that acquire it through respiration</u>.
Explanation:
Photosynthesis is commonly called the process <em>"by which plants produce their own food,"</em> however, this is not the only function of this process, since, <u>in addition to absorbing carbon dioxide from the environment (which living beings we expel through respiration), it releases oxygen into the environment</u> which is essential for our subsistence as it is the element that our body requires and that we acquire through respiration.