algae
They do not think plant life 'came' to Earth. They believe it evolved here.
cotton plant. it evolved from something else.
The first flowering plant, also known as angiosperm, appeared during the early Cretaceous period, around 130 million years ago. This plant evolved from gymnosperms and quickly diversified to become the dominant form of plant life on Earth.
Angiosperms
Unicellular organisms evolved first; and from them evolved the multicellular organisms. But that leads onto another question as to why multicellular organisms evolved.
eff the time in wich life first evolved on earth!!
The oldest plant form on the Earthis algae. Larger plant forms evolved from green algae.Algae and/or diatoms
The plant kingdom first originated in water. Later on it migrated to land. Thus from aquatic to terrestrial mode of life needed the evolution of root.
fertilizing
The first life forms are believed to have evolved in the oceans around 3.5 billion years ago. This early life consisted of single-celled microorganisms like bacteria and archaea. These organisms evolved and diversified over time, eventually giving rise to more complex life forms.
The First Plants evolved From Blue-Green Algae
Yes, bacteria evolved before animal and plant cells. Bacteria are one of the oldest forms of life on Earth, dating back billions of years, while animal and plant cells evolved later through a process of more complex cellular organization.