Which best describes how the fossil record supports the theory of evolution? the fossil record shows exactly how all species have evolved. the fossil record refutes darwin's theories. the fossil record cannot accurately be aged. the fossil record reveals intermediates that link different species.

The endosymbiotic theory which is also sometimes referred to as symbiogenesis states that all the organelles of the eukaryotic cells are prokaryotic cells that tends to live in a much larger host. This theory is important because it does explains how the eukaryotic cells are able to obtain the needed nourishment that is believed to be replenished by the prokaryotic cells.