And antagonist muscle can contract together at the same time in what called a

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.

Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs