Anaerobic pathways operate when is absent (or limited). Glycolysis is the first stage to yield 2 , 2 , and 2 . In the absence of oxygen, the reduced coenzyme used in glycolysis, , cannot donate its electrons to the electron transfer chain. Once it is oxidized, we call it .

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

What material did the moon come from?

Is this mrna or rna need need the answer in a hurry