The governments of many countries have regulations that are designed to prevent the accidental introduction of nonnative insects into their countries. This
is because, in these new habitats, the nonnative insects might

1.become food for birds

2.not survive a cold winter

3.not have natural predators

4.add to the biodiversity

Which of the following represents a negatively charged ion? of t 7

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.

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.