Evolution Storyboard Part 2

Evolution Storyboard Part 2

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Storyboard Description

Part 2.

Storyboard Text

  • Endosymbiotic theory, is an evolutionary theory that explains the origin of eukaryotic cells from prokaryotes. It states that several key organelles of eukaryotes originated as a symbiosis between separate single-celled organisms.
  • When the Earth was created, there were only prokaryotic cells. When some prokaryotic cells started to take in the others, like a photosynthetic cell, or a oxidizing cell, they started to form mitochondrias, and chloroplasts within them, which made eukaryotic cells.
  • There are 3 pieces of evidence that proves the theory. The first evidence is that the chloroplasts and mitochondria in our body multiply the same way as the ancient prokaryotes did. The second evidence states that the chloroplasts and mitochondria have similar DNA as our ancient prokaryotes. Finally, the last evidence states that the chloroplasts and mitochondria have 2 membranes. Their inner membrane, which contains different types of lipids as the outer one. This suggests that the chloroplasts and mitochondria got engulfed by some other prokaryotic cell, to make a eukaryotic cell.
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