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Anything that needs oxygen to breath exhales c02, that includes mammals ans reptiles.

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14y ago

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What do humans and animals exhale when they release carbon back in the air?

CO2 (carbon dioxide).


What gas do animals exhale and plants take in?

Carbon dioxide or CO2 is exhaled by animals when they use their food for energy. Oxygen is used to burn the glucose so that it can be used as energy for growth and repair. This is called cellular respiration and occurs in every single living organism. Plants then use the carbon dioxide to photosynthesise and create their own food in the form of glucose. They release oxygen and create water as a result of photosynthesis. Animals use the oxygen for cellular respiration and when the plants are consumed use the glucose for energy.


How do plants MOST likely change the atmosphere in a way that is beneficial for animals?

When animals exhale, they release a gas called Carbon Dioxide (CO2) which can be lethal to animals if the gas is present in large quantities. Through the process of photosynthesis plants absorb carbon dioxide from the atmosphere and release oxygen as a byproduct. This helps animals because they need oxygen in order to breathe.


How do animals get CO2?

Co2 is not needed for animal life, in fact it is poisonous. They breathe it out as a by product from using energy. However, plants must have co2, and emit oxygen as a by product.


What part of air do animals use to survive?

Animals use oxygen in the air to survive. Oxygen is essential for the process of respiration, which allows animals to convert nutrients into energy. Without access to oxygen, animals would not be able to survive.