The very first would have been very primitive bacteria.
RNA molecules surround by a single lipid layer called micelles.
bacteria
bacteria
most probably a cell
Prokaryotic organisms
The smallest organism on Earth is a nanobe
So...one theory is that cells came to Earth from comets or from aliens seeding the planet...the operative term is theory.
The biosphere is defined as the living organisms on earth. As such, it began to evolve when the first organisms appeared. Currently, this is believed to have happened about 3.5 billion years ago.
The first cells to evolve in primitive Earth were most likely members of the domain Bacteria. These cells were prokaryotic, lacking a true nucleus, and could survive in extreme environments. Their simple structure and ability to adapt to various conditions allowed them to thrive and serve as the foundation for life on Earth.
In a new ecosystem with no predators, the organism may experience rapid population growth as there is nothing limiting its numbers. This can lead to competition for resources and potential overexploitation of the environment. Over time, the organism may evolve mechanisms to adapt to the new ecosystem and balance its population size.
Nonvascular plants
bk/ju
all of the organisms can evolve.
The second organism that appeared on Earth was likely a simple single-celled organism, possibly a prokaryote such as a bacterium. This would have followed the appearance of the first organism, which was also likely a simple organism.
Read your science book chapter . It is on the first page.
A single celled organism.
bacteria
evolution
The First Plants evolved From Blue-Green Algae
Cats and dogs evolve an adaptation to human activities. Any organism can also evolve to human activities and our environment.
The first organism on Earth was a bacterium, from what current science tells us. The Earth was composed of single-celled organisms in the beginning of the world.
Of course,they are evolving.Every organism is evolving.