Georgia’s Coastal Plains region includes about 60% of the state. Long ago this area was part of the Atlantic Ocean and completely covered by water. Today it is characterized by sandy soil and flat topography. One important region of the coastal plain is the Okefenokee Swamp. Much of the Okefenokee is a southern coastal plain non-riverine basin swamp, forested by bald cypress and swamp tupelo trees. Upland areas support southern coastal plain oak domes and hammocks. Drier and more frequently burned areas support Atlantic coastal plain upland longleaf pine. The Okefenokee has the distinction of not only being a part of the National Wildlife Refuge System, but also the National Wilderness Preservation System. Despite government protection, human activities are impacting Okefenokee. In addition to acid rain, precipitation deposits mercury, emitted by coal-burning power plants and waste incinerators, to the swamp. How might this effect animal life in the swamp?
A)Mercury levels cause death to all species in the swamp ecosystem.
B)Mercury in the swamp water is passed back to humans in their drinking water.
C)Biomagnification of mercury results in toxic levels of mercury high in the food chains.
D)Air pollution from local-burning plants results in an increase in acid rain which causes death to aquatic species.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!

69 is the correct math for the amino acids

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.

d. changes in climate and historical records

hope this