The original source of energy for the pyramid is the

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

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.

Dna replication or repair occurs in a cell in all of thw following situations except when