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The first multicellular life does not need oxygen. That is the only type of life that does not need any oxygen at all basically. It is because a lot of organisms do not need the respiratory system at all.
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Which gas became part of earth's atmosphere mainly as a result of the evolution of life-forms?
oxygen
Do plant produce when they have no oxygen?
Yes, plants produce oxygen and need carbon dioxide and sunlight to produce food.
Why was it important for the buildup of oxygen in the atmosphere?
it made it possible 4 it to be plants animals and human life
Ion of oxygen?
Oxygen usually forms the oxide ion O2-
What are most important gases for life?
You are probably thinking of oxygen and something else, but there are no gasses in the atmosphere universally essential for life. In fact oxygen which is essential to our lives is a deadly poison to many forms of microbial life! Even for us oxygen is toxic and we have a very complex system to keep repairing the damage caused by the toxic effects of the oxygen we need to live!
Could a cell live without a mitochondria?
Yes. Not yours, but there are plenty of life forms the do not require oxygen.
How would oxygen affect the earth if it was removed?
If oxygen were to be removed from earth, all life forms that require oxygen to survive will die out leaving the earth as we know it baron. Oxygen is vital to our survival, without it we would die.
Was earths first cells aerobic or anaerobic?
No, not all forms of life on Earth require oxygen in their environment. There are forms of life, called anaerobic forms, that do not require oxygen. These animals belong to the phylum Loricifera.
What were the earliest oxygen producing life forms?
cyanobacteria
Is cyanobacteria live in mars?
Well. Cyanobacteria were the first life forms on Earth that did not require oxygen to breathe. I think there is probably life on Mars. But I don't really know for sure. But if there is life on Mars, it probably would be microscopic as cyanobacteria.
How do you know if your from out of this world?
When you don't require oxygen to maintain life.
Why is oxygen atoms important?
Oxygen atoms are important because oxygen is necessary to all higher life forms.
How many life forms do not rely on oxygen?
50 billion
Where does oxygen come from and why is it important to life on earth?
Oxygen is important as it the breathing sources. It also forms ozone which is vital for life on earth.
Why there is no creatures on Mars?
It is un suitable for life forms, since there is no oxygen.
Do artificial oxygen cause cancer?
Oxygen is oxygen no matter how it is created. Oxygen is essential for many life forms so it is safe to say it is not a carcinogen.
Why do scientists say that all forms life depend on solar energy?
Plants require sunlight to grow. Other forms of life eat plants.
