We know that the atmosphere became more oxygen rich around 1.8 ga because of geologic evidence such as:

10111213141516lactic acid fermentation differs from ethyl alcohol fermentation in thato in ethyl alcohol fermentation co2 is also producedlactic acid fermentation can occur in all living thingsethyl alcohol fermentation can only occur in plantsonly lactic acid fermentation can produce more atp

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity