Although many types of bacteria are and do not cause disease, nearly half of all human diseases are bacterial. better sanitation and the use of antibiotics over the last century have affected death rates from bacterial infections in which way? a. death rates have increased b. death rates have decreased c. death rates have remained the same d. death rates have increased and then decreased

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

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.

Which of the following is not a potential result of deforestation?