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Although its a paradox to believe anything beyond the time of known history evidence suggests that life started in water like habitats. But the organisms radically changed the planets water habitats so much that those early habitats no longer exist. Evidence is based on sampling the current environment and suggesting the theory now commonly accepted as the description of prehistory.
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Which important element was missing in earths early atmosohere?
Oxygen was the important element missing in Earth's early atmosphere. It was only produced later by photosynthetic organisms.
What change in Earths atmosphere allowed organisms to live on land?
The development of an ozone layer in Earth's atmosphere allowed organisms to move onto land. The ozone layer absorbs the sun's harmful ultraviolet radiation, providing protection for early land-dwelling organisms. This helped pave the way for the colonization of land by plants and animals.
Which group of organisms is most responsible for changing the compisition of earths early atmosphere?
Cyanobacteria are the group of organisms most responsible for changing the composition of Earth's early atmosphere. Through photosynthesis, they released oxygen into the atmosphere, fundamentally altering its composition and paving the way for aerobic organisms to evolve.
Earths early atmosphere was changed dramatically by the evolution of?
photosynthetic organisms, like cyanobacteria, which produced oxygen as a byproduct of photosynthesis. This led to the increase in atmospheric oxygen levels, changing the composition of Earth's early atmosphere.
How was oxygen added to the earths atmosphere?
Oxygen was added to Earth's atmosphere through the process of photosynthesis by early photosynthetic organisms like cyanobacteria. These organisms released oxygen as a byproduct, which accumulated over millions of years and eventually led to the oxygen-rich atmosphere we have today.
Which important element was missing in earths early atmosohere?
Oxygen was the important element missing in Earth's early atmosphere. It was only produced later by photosynthetic organisms.
What change in Earths atmosphere allowed organisms to live on land?
The development of an ozone layer in Earth's atmosphere allowed organisms to move onto land. The ozone layer absorbs the sun's harmful ultraviolet radiation, providing protection for early land-dwelling organisms. This helped pave the way for the colonization of land by plants and animals.
How did earths early organisms obtain food?
That organisms have many lifes substances that could involved how many they will actually have in common in scintifice will hav more.
Which group of organisms is most responsible for changing the compisition of earths early atmosphere?
Cyanobacteria are the group of organisms most responsible for changing the composition of Earth's early atmosphere. Through photosynthesis, they released oxygen into the atmosphere, fundamentally altering its composition and paving the way for aerobic organisms to evolve.
What molecule was not present in early Earths reducing atmosphere?
Oxygen (O2) was not present in early Earth's reducing atmosphere. It only became abundant in the atmosphere due to the photosynthetic activity of cyanobacteria and other early organisms.
What kind of organisms live in earths most extreme environment and may provide scientsts with clues about possible life forms on other planets?
Extremophiles
Earths early atmosphere was changed dramatically by the evolution of?
photosynthetic organisms, like cyanobacteria, which produced oxygen as a byproduct of photosynthesis. This led to the increase in atmospheric oxygen levels, changing the composition of Earth's early atmosphere.
What is Earths biosphere is?
living organisms - study island answer (:
Was there oxygen in the early earths atmosphere?
It is believed that the early Earth's atmosphere did not contain significant amounts of oxygen. Oxygen began to accumulate in the atmosphere around 2.4 billion years ago due to the emergence of photosynthetic organisms.
What gas was lacking from earths early atmosphere in the early precambrian?
oxygen
How was oxygen added to the earths atmosphere?
Oxygen was added to Earth's atmosphere through the process of photosynthesis by early photosynthetic organisms like cyanobacteria. These organisms released oxygen as a byproduct, which accumulated over millions of years and eventually led to the oxygen-rich atmosphere we have today.
What factor contributed to the formation of earths early atmosphere?
energy from the sun,lightening,earths heat triggered chemical reaction for the early gases of the earth combined
