Answer:
Cell theory states that B) All living things are made up of cells and A) cells come from other living cells.
The sun is the ultimate source of energy and the process is Photosynthesis.
Speciation is b. the process by which new species are formed. They are often caused by the isolation of certain organisms in terms of environment or geographical area. This is part of the evolutionary changes that various species undergo to brought about by natural selection.
