why do people assume that there has to be oxygen and water to support life on other planets? humans may need these things but maybe "other" life forms don't.
2007-03-08 23:08:12 · 13 answers · asked by numpty 1 in Science & Mathematics ➔ Biology
Humans are arrogant creatures. There are thousands of other civilizations that harbor life.
2007-03-08 23:12:21 · answer #1 · answered by Anonymous · 1⤊ 1⤋
They may not need oxygen, or at least not the same concentration of oxygen we have in our atmosphere, but water is pretty essential to basic amino acid formation, and amino acids form "life" as we know it. That does not, however, preclude the possibility of life existing in waterless environments. It would just be another type of life than what we're accustomed to. There is a possibility that there's life on Titan, where there are methane rain storms and frozen seas.
2007-03-08 23:18:22 · answer #2 · answered by Anonymous · 0⤊ 0⤋
i agree u but basically water and oxygen are the basis of life for the human beings so they are tryking to find out if human life is possible on outer planets. so they are trying to find out planet with air and water as no human i have known yet can survive without it!
2007-03-08 23:14:15 · answer #3 · answered by pradip 1 · 0⤊ 0⤋
Well, it's not just humans.
All of the 'animals' on our planet need water and oxygen, so from what we know these are the fundamental necessities for 'life as we know it'.
The plants need CO2, water and sunlight, but would this be considered life?
2007-03-08 23:12:29 · answer #4 · answered by mark 7 · 0⤊ 0⤋
The kind of chemical bonding needed to create nucleotides can only happen in the presence of water.
When oxygen is burned with sugar it produces energy. Organisms can live without oxygen, but not highly energetic species such as multi-cellular animals (fish, amphibians, mammals, birds, reptiles, insects, arachnids, etc.). Animals that move around have high energetic needs. Only with oxygen (and sugar) can we produce such energy requirements.
2007-03-09 00:30:17 · answer #5 · answered by Dendronbat Crocoduck 6 · 0⤊ 0⤋
Yes you are right , but since we need water and oxygen, its possible they might do is well, they can be different , but also, very much the same
2007-03-08 23:16:02 · answer #6 · answered by Anonymous · 0⤊ 0⤋
You're exactly right. I do believe that there are some other life forms in other planets, we are not alone!!!
2007-03-08 23:17:52 · answer #7 · answered by Lily 4 · 0⤊ 0⤋
Because given the basic elements that make up the universe, it representss a pretty reasonable starting point
2007-03-08 23:26:53 · answer #8 · answered by Anonymous · 0⤊ 0⤋
yes very true !! and another worrying fact is that we know more about outer space than we do about the deepest parts of our oceans (what wonders are here ????)
2007-03-08 23:13:24 · answer #9 · answered by Anonymous · 0⤊ 0⤋
people who assume stuff like that are narrow minded
2007-03-08 23:12:19 · answer #10 · answered by Anonymous · 0⤊ 0⤋