Who were the first terrestrial multicellular organism?

Answer 1

Still in debate, so no correct answer for this question now. Could be certain bacteria which incorporated other bacteria into their own cells (leading explaination to eukaryotic evolution and mitochondria), in an evolutionary goal to be more efficient.

Answer 2

The first terrestrial multicellular organisms were likely early land plants, such as mosses and liverworts, that evolved from aquatic green algae and adapted to life on land. They played a crucial role in colonizing terrestrial environments and paving the way for the evolution of other land-dwelling organisms.

Answer 3

Cyanobacteria are considered by many scientists as the first multicellular organisms to evolve. They appeared several billions of years ago and can be found almost on types of terrains and habitats like terrestrial, aquatic, arid and rocky regions all across the latitudes and longitudes of the Earth. This shows that they are one of the most successful microorganisms to have evolved and survived on the Earth's surface.

Answer 4

Existing of multicellular life dated back 1 billion year ago.The early multicellular may come from colony of cells with start to divided each function. There are no shells or skeleton and thus no fossil to show for such early species. The known primitive multicellular is Volvox which is an algae might be what the first multicellular organism look like.

Answer 5

tiny seaweeds...