Directions: Use the information provided and your knowledge of Earth and Space Sciences to answer the following questions. Show all work where necessary.
Directions: Use the information provided and your knowledge of Earth and Space Sciences to answer the following questions. Show all work where necessary.
The image below (Figure 1) shows the evolutionary and geological events leading to changes in oxygen content in the earth's atmosphere since the formation of the planet.
The image below (shows a geological clock with the projection of the Earth's history ("Ma" = a million years (Megayear) ago; "Ga" = a billion years (Gigayear) ago).
The image below shows the changes in oxygen content in the earth's atmosphere since the formation of the planet.
The image below shows the evolution of life from Precambrian to Phanerozoic changes.
The image below shows a simplified comparison between eukaryotes vs. prokaryotes.
Explain the connection between rising atmospheric oxygen levels and the appearance of eukaryotic organisms on Earth.
Which event most directly enabled eukaryotic organisms to evolve?
Based on Figure 3, describe how oxygen levels changed during the Precambrian and Phanerozoic eons.
Explain how the process of endosymbiosis contributed to the evolution of eukaryotic cells.
Figures 3 and 4 show that major evolutionary changes in life forms coincide with increases in atmospheric oxygen. What pattern can be inferred from these data?
Which advantage did aerobic respiration provide to early eukaryotic cells?
Describe one piece of geological or fossil evidence that supports the link between oxygen levels and biological evolution.
How did the coevolution of oxygen-producing organisms and oxygen-dependent organisms shape the biosphere we see today?