Answer:
The oxygen missing will be found in PLANTS
Explanation:
The process RESPIRATION is a process where by animals inhale oxygen from the air and exhale carbon dioxide as waste product.
PLANTS through Photosynthesis use carbon dioxide in the presences of light energy and chlorophyll to produce sugars and oxygen. This oxygen is present in plants and it is returned back to the atmosphere as bye product which is then inhale back by animals.
When the animal inhale air, the oxygen diffuses into the alveoli then the blood stream which help also to generate ATP .
Therefore, the missing oxygen will be found in plants.
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https://brainly.in/question/1681448
