Biological evolution is the process by which populations of organisms change over time. How could natural selection lead to the evolution of a species?
Well im a 7th grader so ok it can be true that cells were just small they did not know how to grow bigger so they just stay still traveling around living organisims after a while a cell meets another cell and the and join together to make bigger cells all to make tissues and tissiues made organs organs make systems and the system to make the organism. note i go to a jamaican school so we kinda learn more quicker than u guys.
Plants, Animals, Protists, Fungi,Archaebacteria, Eubacteria
the more the better and depends on what cell you need
