A model of the theory of endosymbiosis is shown here. It is an explanation for the presence of chloroplasts and mitochondria as organelles that might have had an origin as free-living prokaryotic cells at one time. Evaluate each statement below and select the ones that accurately describe how evolution and endosymbiosis gave rise to life on Earth as we know it today.
A) Endosymbiosis provided a benefit for the engulfed prokaryote and the host cell that engulfed them.
B) The energy provided by the photosynthetic or aerobic bacteria allowed for greater success of the host cell.
C)Only cells that were able to perform endosymbiosis and become eukaryotic were provided a mechanism to survive.
D) Endosymbiosis was a directed process as eukaryotic cells needed additional organelles for energy and metabolism.
E) Cells that engulfed photosynthetic or aerobic bacteria had a survival advantage and we able to reproduce more successfully, leading to their evolution and proliferation.
Answers: 3
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