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Why the early Earth' s atmosphere could not have supported multicellular life?
Wiki User
∙ 9y ago
Early Earth would have been un-inhabitable for humans because early earth's athmosphere would have been mainly carbon dioxide (co2) and water vapour. Then plants appeared which take in co2 and give out oxygen. Then small bacteria etc appeared Once there was enough oxygen in the earth for humans to breath in humans began to develop.
So basically in the early earth there was not enough oxygen for humans breath.
Improve: Don't forget the molten surface and constant battering by flying rocks!
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThere are several factors. Some being the intense heat (over 200 degrees Celsius), the poisonous atmosphere filled with carbon monoxide and deadly gas's from volcano eruptions, the lava drenched land, and much more.
Wiki User
∙ 9y agoThe early Earth's atmosphere contained almost no oxygen and was much warmer than it is today. There was also no ozone layer to absorb the sun's ultraviolet rays. Photosynthetic life appeared prior to multicellular life, the photosynthetic life enriched the atmosphere with oxygen.
Wiki User
∙ 9y agoMost life would not have survived on the early earth because there was little or no oxygen. Oxygen is necessary for most life on earth.
Wiki User
∙ 12y agolack of an ozone layer
Wiki User
∙ 11y agotoo warm
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WHAT IS a another word for multicellular?
You could say consisting of many cells.
What role did cyanbacteria play in the evolution of life on earth?
The role of raising atmospheric oxygen to so high a level that multicellular and complex organisms could evolve. Oxidative phosphorylation generates the energy through ATP that larger and more complex organisms need.
Is the Earth a living thing?
Yes, in a sense it is. It evolves, changes, and the elements that contribute to it change. If it wasn't living how could pollution effect it? In response to the previous members answer, the Earth is not a living thing. It is a large collection of various rocks, at the centre of which is a large collection of Magma. The earth is not affected by pollution, our atmosphere is. Our atmosphere is the collection of gases which help keep the suns damaging, unfiltered rays out, whilst allowing in it's heat and light energy.
How would the increasing number of photosynthesizing organisms on earth have affected both earth and its other organisms?
As the first photosynthetic organisms increased in number, the concentration of oxygen in Earth's atmosphere began to increase. Organisms that could respire aerobically would have evolved and thrived. The sun's rays would have converted much of the oxygen into ozone molecules that would then have formed a layer that contained more ozone than the rest of the atmosphere.
What cells are multicellular and which ones are unicellular.?
Unicellular cells are cells that only have one cell. They can be as large as an egg in fact an egg is a Unicellular cell. Other unicellular cells include Euglena, Paramecium and Amoeba. As for Multicellular cells they are things that could be found usually in animals or plants like your red or white blood cells their are thousands of them if you want to find more info on multicellular cells look on google.
Could water exist as a liquid on earth if did not have an atmosphere?
could water exist as a liquid if we don't have a atmosphere
Could water exist as a liquid on Earth if it did not have an atmosphere?
could water exist as a liquid if we don't have a atmosphere
What is a one word substitute for atmosphere?
For the Earth's atmosphere, air. For the atmosphere of a location, it could be mood or aura.
Why is earths atmosphere helpful?
The Earth's atmosphere is helpful because without it we could not breathe and therefore could not exist.
Could Jupiter's atmosphere stop the earth?
yes it could cause of its gravity
What does the astmosphere do?
Protect the Earth. A car's gas burns part of the atmosphere. If the atmosphere disolves or goes away, then the sun could damage the Earth or the north and south poles could change. Then compasses and electric stuff would not work. The atmosphere is very important to Earth.
What is a simple way you can show that the earth bounces some heat back into the atmosphere?
Using your hands you could use one hand to demonstrate the earth's atmosphere, the other hand could demonstrate heat radiation from the sun passing through the atmosphere. you could then replace your hand for the atmosphere to demonstrate more.
Could you survive on Earth without the atmosphere?
No, because the atmosphere keeps in all the oxygen. Without the atmosphere the oxygen would escape.
Could gamma rays be blocked by the Earth's atmosphere?
Yes. Our atmosphere blocks cosmic and solar gamma rays.
Why do you think water should return to atmosphere?
so we could have rainfall on the earth
Where on earth could you find nitrogen?
Our atmosphere is made up of 78 % nitrogen.
Why do you think water should return to the atmosphere?
so we could have rainfall on the earth
