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Over most of Precambrian time 80 percent of earths history-the only life forms are bacteria ,which appear about 3,500 million years ago. multiple-cells marine animals like spriggina appear at the end of the era
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What was the longest segment of the earth's history?
It was the Precambrian time period.
What are the four geologic eras of time and what happened in each of them?
Precambrian Era Paleozoic Era Mesozoic Era Cenozoic Era
What is the significance of the didvision between the Cambrian and PreCambrian periods?
During the Cambrian period, life began to appear on the planet.
Which came first the precambrian or the mesozoic?
Precambrian eon4567.17-542 million years agoMesozoic era251-65.5million years agoSo precambrian came first...........
Which example best describes life in the precambrian era?
During the late Precambrian, about 560 million years ago, the first confirmed macroscopic multicellular organisms appeared. Around 558 million years ago, the first mollusk, Kimberella,appeared in the fossil record.
Was there an ice age in the precambrian time?
nope, it happened way after
Why is the shield also referred to as the Precambrian Shield?
Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.
What happened during precambrian time?
Over most of Precambrian time 80 percent of earths history-the only life forms are bacteria ,which appear about 3,500 million years ago. multiple-cells marine animals like spriggina appear at the end of the era
Why is the Canadian Shield also referred to as the Precambrian Shield?
Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.
Why is the Canadian Shield also referred as the Precambrian Shield?
Because it was created in the precambrian era...The Candadian Shield was formed in the Precambrian Era.The rocks of the Canadian Shield formed during the Precambrian time.
When were precambrian rocks formed?
During the precambrian.
Did plants colonized dry land during the precambrian time?
yes
How many living organisms were alive during the precambrian time?
155.92yrs
Cyanobacteria are as significant to this process today as they were during precambrian time?
hello there
What did jellyfish eat during the precambrian time period?
Jellyfish were not even alive during the Precambrian era because only single-celled organisms lived.
What did earth look like during the precambrian time?
It looked like a sphere
What was the longest segment of the earth's history?
It was the Precambrian time period.
