Relier Pairs LRMS Environmental changesVersion en ligne A review for objectvie LS 8 par Lynanne C. Wyatt 1 What would cause a species to move? 2 What is the result if there is an overpopluation of bacteria caused by an algae bloom? 3 Eutrophication 4 What is the effect of excessive use of nitrogen based fertlizers that run off into ponds and lakes? 5 In an aquatic ecosystem, if the water level dropped due to drought, which aquatic population of animals would be most affected 6 If squirrels are the primary food source for hawks in an area and due to a drought the squirrels left the area. What result would most likely happen to the hawks? 7 Benefits of hibernation 8 Hibernation, migration and dormancy are all methods of animals 9 If a species could no longer find food, what would it most likely do? 10 An external stimuls that causes a plant to bend towards it 11 How are dormancy and hibernation similar? 12 Phototroptism 13 Nocturnal animals that are active at night and sleep during the day adapting to changes in the environment Metabolic rate and body temperature both decrease It increases the rate of algae growth there is a reduction in oxygen levels When a pond/lake is covered with algae and oxygen levels drop. a light source it reduces the need an animals has for food when resources are limited move to a new area to find food causes a responding plant to grow in the direction of light The hawks would follow the squirrels to a different area fish Environmental conditions have changed