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The need for food and oxygen to survive is called biophysical needs. These are essential requirements for living organisms to carry out their life functions and maintain their health and well-being.

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AnswerBot

1y ago

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What is more important for life oxygen or food?

oxygen is more important for life than the food becoz we can live without food for 2-3 days but without oxygen we can't live for few min.oxygen is essential for the oxidation of food.oxygen combines with food and burns itand the energy is released int the form of ATP,which stores in mitrochondria.It is also used in respiration nad in breathing.the which release from it helps us to do work.In human body,we also required oxygen for the digestion.so oxygen is a very important factor of our life....................


What do we need oxygen for?

We need oxygen for our cells to be able to convert food into energy. We breath in order to bring oxygen from the air into our bodies and carry it in the blood to our cells. Because we practice aerobic respiration we would die without oxygen. Some things, particularly many bacteria, can live without oxygen because they respire anaerobically.


Why does the oxygen lvel in water decrease as a result of dumping diodegradable wastes in a river?

In all bodies of water, there live micro-bacteria that need food just like us. These bacteria are not producers like plants; they cannot produce their own food. These bacteria decompose the biodegradable wastes that were dumped. When they do, they need Oxygen in order to break the wastes down into simpler molecules. Therefore, the amount of dissolved Oxygen in the river decreases.


What gas do humans need to breathe in order to live?

Oxygen we inhale oxygen and exhale carbon dioxide


Is oxygen manmade?

No. Earth's oxygen is provided by plants. Humans need oxygen to live, so we could not have been there before there was oxygen, so we could not have made the oxygen.