Yeah! Today we finished watching "How the Earth Was Formed". After the video, you took notes on how life may have arose on Earth. We learned the difference between spontaneous generation and biogenesis. We also learned about the endosymbiont theory which suggests that prokaryotic cells at one time were ingested into eukaryotic cells and they symbiotically lived together. This symbiosis gave rise to the eukaryotic cells of today.

Homework: Read the article about the Endosymbiont Theory and answer questions.