Yes. There are organisms called anaerobic bacteria which do not need oxygen. To some organisms, called obligate anaerobes, oxygen is actually toxic. The first living things on Earth were obligate anaerobes.
If plants did not spread oxygen then the people would die off. We as human beings need oxygen to live. Plants need Carbon Dioxide. We give off Carbon Dioxide for them to breath in and they breath out oxygen which we breath in. so really plants and humans play important roles in eachothers life and wouldn't survive without each other. - Ashley barba
Because it has to react with oxygen in the atmosphere to harden.
No they live in harsh conditions so they won't always be needing oxygen.
Every cell in your body needs oxygen.
Oxygen is important to the society because without it, we could not live. we need Oxygen for us humans to live, for the animals and environment. that is the most important point as to why we need Oxygen. we also use Oxygen for hospitals, burning things like paper, and more. Oxygen is something we have to live with as it is what we survive on.
All fish need oxygen....
Yes, fish and other aquatic life need to extract oxygen out of the water using gills.
do you need oxygen in life
That means that oxygen is necessary for life to survive. Humans need oxygen to breathe and use for cellular respiration.
oxygen and sunlight
It means she doesnt need anything in her life except you
because we need oxygen to be able to breath and without carbon dioxide, oxygen couldn't exist.
Animals need oxygen to carry out life processes. Plants need carbon dioxide. Some animals and plants can use either if they need to.
all animals need oxygen no matter whether they get it from the water or air or through their skin. plants don't need oxygen that i know of they convert carbon dioxide to oxygen truthfully I'm not sure about bacteria, viruses, protisits, etc (microscopic life) but I'm pretty sure they get energy from oxygen.
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.
because you need biological life. You also need liquid water. Mars does have oxygen @ very low levels. Other planets do have oxygen.
don't be so sad... life doesnt need analysing... just enjoy it