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Starting billions of years ago, algae played a crucial role in shaping Earth's ecosystems and atmosphere. These simple photosynthetic organisms were among the first to harness sunlight, converting carbon dioxide and water into oxygen and organic matter. This process not only contributed to the rise of atmospheric oxygen, paving the way for more complex life forms, but also established the foundation of aquatic food webs. Over time, algae diversified into various forms, influencing both marine and terrestrial environments.
What else can I help you with?
How was Africa created?
As far as science can infer, billions of years ago the continent of Africa split off from Pangea due to shifting tectonic plates.
How long did it take to create the milky way galaxy?
The Milky Way Galaxy probably started to form about 13.2 billion years ago, and has been forming ever since. It will continue to evolve for billions, if not trillions of years from now.
How many years is fourscore and seven years ago?
fourscore and seven years ago means 87 years ago
How long ago was 490 bc?
290 BC was 2300 years ago. 290 BC means 290 years before Jesus Crist was born which is the starting point from wich we count our present years. So you add the amount of years since Jesus Christ was born, currently 2010, and add the amount of years BC and you get the total of years: 2010 + 290 = 2300 So 290 BC was 2300 years ago.
Which part of the you have a dream speech came from the Gettysburg address?
Martin Luther King Jr. started it with 'five score years ago...' it was just like when Abraham Lincoln did the Gettysburg Address starting with 'four score and seven years ago...'
Starting billions of years ago algae lowered the?
...lowered the level of CO2 in the atmosphere and released O2
How many years ago was mars formed?
about 4.5 billions years ago.
When was Malta made?
Billions of years ago.
Does water came from asteroids billions of years ago?
No, water did not come from the asteroids a billion of years ago.
What year was the beginning of Dinosaurs?
nobody knows for sure, but they begans billions and billions of years ago
Why do scientist see the galaxies if they were millions and billions of years ago?
The galaxies beyond our own are millions to billions of light years away, meaning the light takes millions to billions of years to get here.
Where did the ancestors come from?
Our ancestors came from Africa billions of years ago
What year was Mt Vesuvius created?
probably billions of years ago
Is the mantle the evidence of how earth look like when it was first formed 4 billions years ago?
The mantle is not the evidence of how earth looked like when it was first formed 4 billions years ago, but the biogenic graphites.
How long ago was big bang?
The Big Bang is estimated to have occurred around 13.8 billion years ago, based on observations and measurements of the universe's expansion and the cosmic microwave background radiation.
Where did life start?
Life first began in the oceans, billions of years ago.
How do scientists think that the first multicellular organism arose?
The oldest fossils of multicellular organism are from tiny algae that lived about 1.5 billions years ago. By 600 million years ago the first multicellular animals-jellyfish-like organisms -had evolved.
