prokataryotic and autotrophic
Bacteria were the first cells.
Scientists theorize that the first living cells appeared spontaneously. They believe the process took place around four billion years ago.
Scientists first thought of them as small animals. They first observed cells using the microscope and the work of many scientists led to the development of the cell theory.
Scientists believed that first the earth was a ball of fire. They believe that the earth formed around this ball of fire, thus meaning the ball of fire is the Earth's core.
snotites
the answer is "first".
first era was the Precambrian
Snotites
Snotites
snotites
Bacteria were the first cells.
Scientists theorize that the first living cells appeared spontaneously. They believe the process took place around four billion years ago.
Scientists first thought of them as small animals. They first observed cells using the microscope and the work of many scientists led to the development of the cell theory.
Right after the Great Oxidation Event, when the ozone layer first formed. About 500 million years ago.
Paramecium are single-celled organisms that were first discovered in the 17th century. Scientists believe paramecium have been around since the Earth was formed.
It Was van Leeuwenhoek By: Semaj Lisenby
protocells