What were the early earth conditions like?
NO oxygen , Volcanoes , oceans , and no life
What is spontaneous generation?
When life suddenly appears from nonliving things
Who are Miller and Urey? What did they do?
They mixed gases and water together and zapped it with an electrode. This did not produce life BUT it did produce some of the organic molecules
Early earth theory;
What is the early life theory?
Macromolecules organized into protocells
protocells become prokaryotes which are hetrotrophs (eats) and anaerobic (no oxygen)
What is endosymbiosis? What does the theory say?
This is the theory that prokaryotes ate each other but instead of dying these eaten prokaryotes developed a mutalistic relationship with the prokaryotes that ate them. They became organelles. AND now that the prokaryotes had organelles they are eukaryotes.