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There was no oxygen in the beginning. Plant life developed and released oxygen gas into the atmosphere over a long period of time.
If that had never happened, there would not be much if any free oxygen in the atmosphere and aminal life as we know it would never have developed.
What else can I help you with?
What gas is needed by animals to breathe in?
Animals need AIR to breath in - AIR is made up of about 80% Nitrogen and 20% Oxygen. The animals use the Oxygen in the AIR.NOTE if an animal were to breath 100% Oxygen this would eventually kill it, Pure Oxygen is toxic.They need to breath AIR.
Can animals produce oxygen?
No, animals cannot produce oxygen. Plants, algae, and some bacteria are the primary producers of oxygen through the process of photosynthesis. Animals, including humans, rely on consuming oxygen produced by these organisms to survive.
What would happen to animals if the amount of oxygen the earths atmosphere decreased?
youll die
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.
What would happen to the carbon dioxide and oxygen levels if w had too many animals in the biodome?
If there were too many animals in the biodome, the carbon dioxide levels would likely increase due to the animals' respiration, which releases CO2. This could lead to a decrease in oxygen levels, as there would be more demand for oxygen for respiration than could be replenished through photosynthesis, especially if plant life is limited. Consequently, the imbalance could create an unhealthy environment for both animals and plants, potentially leading to a collapse of the biodome's ecosystem.
What do animals need but plants don't?
That would be oxygen.
What would plants and animals use the energy that was lost?
oxygen
Do all animals use the same amount of oxygen?
Animals use the amount of oxygen relative to their size. An elephant would need lots of oxygen, as it has larger muscles. Whereas a mouse has considerably smaller muscles, so it would require less oxygen.
If you woke up tomorrow and all of the animals on earth were gone what would happen to the amount of oxygen in the air?
if all the animals were gone there would be no carbon dioxide for plants and trees to take in and no oxygen would be produced.
What gas is needed by animals to breathe in?
Animals need AIR to breath in - AIR is made up of about 80% Nitrogen and 20% Oxygen. The animals use the Oxygen in the AIR.NOTE if an animal were to breath 100% Oxygen this would eventually kill it, Pure Oxygen is toxic.They need to breath AIR.
Why is photosynthesis so important to animals?
one of the ways in which photsynthesis is vital to animals is that CO2 is recycled into oxygen. Without this recycling process there would be less oxygen for animals to undertake respiration.
What will happen if there was no trees and plants?
There would be no oxygen therefore no humans or animals.
Can animals produce oxygen?
No, animals cannot produce oxygen. Plants, algae, and some bacteria are the primary producers of oxygen through the process of photosynthesis. Animals, including humans, rely on consuming oxygen produced by these organisms to survive.
What would happen if lily pads were removed from pond?
The wetland would be warn away by erosion.
Why would animals die if plants didn't produce oxygen?
All animals depend on oxygen, because oxygen is needed for respiration and converting food to energy, and the by products will be carbon Dioxide (CO2) which plants use.
What would happen if all the oxygen in the air?
we all die lol Everything that needs oxygen would die. including us, animals, and plants.
Is it easier for humans in space than animals?
Humans ARE animals. All animals breath oxygen, so all animals would be in trouble in space (unprotected).
