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What era featured the longest periods with no life forms on Earth.?
Precambrian
Do precambrian have any plants or organisms living?
During the Precambrian era, around 4.6 billion to 541 million years ago, there were no land plants or complex multicellular organisms as we know them today. Instead, the Precambrian era was dominated by simple single-celled organisms like bacteria and algae, as well as some primitive multicellular organisms like sponges and jellyfish.
What era is furthest in the past?
Precambrian !!!
What are the four geologic time scale eras from oldest to most recent?
The 4 eras are Cenozoic era, the mesozoic era, the paleozoic era, and the precambrian era.
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.
How are animals from the Precambrian era generally characterized?
The animals in the Precambrian Period were soft bodied animals. This Era was dominated by single celled organisms: algae, bacteria. Also in existence were jellyfish, spiders, crabs, and worms.
How was the environment like in Precambrian era?
The environment during the Precambrian era was very different from today. There were no complex life forms, and the atmosphere had high levels of carbon dioxide. The land was barren, and the oceans were dominated by simple organisms like bacteria and algae.
What two gases probably dominated Precambrian Earths atmosphere?
The two gases that probably dominated Earth's atmosphere during the Precambrian era were carbon dioxide (CO2) and nitrogen (N2). These gases were likely present in much higher concentrations than oxygen.
What geologic era lasted longest?
The Cenozoic Era is the most recent geologic era and has lasted for around 65 million years, making it the longest era to date. During this era, mammals diversified and dominated the Earth's ecosystems.
Historians know least about era do?
**Precambrian**
When was the Founding Era?
the Precambrian era
What are two subdivisions of the Precambrian Era called?
The two subdivisions of the Precambrian Era are the Hadean and the Archean Eons.
There was no life on land during this era?
Precambrian Era
Did the precambrian era occur first?
Yes. The first era was the precambrian era followed by the paleozoic era then the mesozoic era than the Cenozoic era.
What are the chracteristics of the geological era and the definition of precambrian Cenozoic mesozoic and paleozoic?
Precambrian
What era featured the longest periods with no life forms on Earth.?
Precambrian
Do precambrian have any plants or organisms living?
During the Precambrian era, around 4.6 billion to 541 million years ago, there were no land plants or complex multicellular organisms as we know them today. Instead, the Precambrian era was dominated by simple single-celled organisms like bacteria and algae, as well as some primitive multicellular organisms like sponges and jellyfish.
