Sounds can cause physical pain if they are louder than 10 db 120 db 50 db 80 db plz i need the answer faaast

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.

Number and variety of living organisms; includes genetic, species, and ecological types.

Aparticular ant species has four pairs of chromosomes. identify the genetic possibilities from independent assortment of a gamete.