The Archean Eon is the period in which the first life on Earth appeared.
During the Archean Eon life started and was dominated by one-celled prokaryotic life forms. Eukaryotic one-celled organisms became dominant in the Proterozoic Eon. Multicellular organisms ruled the planet during the eon known as the Phanerozoic.
2 billion years ago ... You Plato user huh....
Life first appeared on land around 500 million years ago during the Ordovician Period. Plants and some arthropods were among the first organisms to colonize terrestrial habitats, followed by amphibians and eventually reptiles.
We are currently in the Cenozoioc Era (sub-era Tertiary); the era is divided into 3 periods, starting with the Palaeogene, then the Neogene, & now the Quaternary period. The era before this one was called the Mesozoic Era
The first land-dwelling organisms, which were likely plants and fungi, appeared during the Paleozoic Era. This transition from aquatic to terrestrial environments occurred around 460 million years ago during the Ordovician period.
Life first flourished on Earth during the Precambrian era, which lasted from about 4.6 billion years ago to around 541 million years ago. This period saw the emergence of the first single-celled organisms like bacteria and algae, laying the foundation for the diversity of life that we see today.
no it was paleozoic era
Cenozoic era
The Precambrian Era was the first emergence of complex, multicellular life forms on earth. Jellyfish and segmented worms were discovered to have lived during this time.
The Mesozoic Era.
The first era in geologic time is the Precambrian era, spanning from about 4.6 billion years ago to 541 million years ago. It is characterized by the formation of the Earth, the origin of life, and the development of early single-celled organisms. This era laid the foundation for the subsequent evolution of more complex life forms.
The Precambrian Era. Basically, the only life present in Earth was that of single-celled bacteria.
Pre-Cambrian. It's when bacteria first came about.
Bacteria are thought to have first appeared on Earth around 3.5 billion years ago during the Archean era. This early period in Earth's history was characterized by the development of simple cellular life forms like bacteria.
Fossil evidence suggests that life first evolved on Earth during the Archean Eon, around 3.8 to 2.5 billion years ago. This era saw the emergence of early single-celled organisms, such as bacteria and archaea, which were the first forms of life on our planet.
Yes there was life , it was Mesozoic Era .
Cenozoic era