Ecology and the Environment

Ecology and the Environment

QUESTION 1: Deciduous trees and shrubs shed their leaves seasonally in response to environmental factors. What two biomes have predominantly deciduous vegetation and what are the abiotic factors that affect leaf loss in each of them?

QUESTION 2:

1. Match the biome to the corresponding description,

   –A.B.C.D.E.F.G.H.I.J.K.L. Boreal forest –A.B.C.D.E.F.G.H.I.J.K.L. Arctic tundra –A.B.C.D.E.F.G.H.I.J.K.L. Tropical wet forest –A.B.C.D.E.F.G.H.I.J.K.L. Temperate forest –A.B.C.D.E.F.G.H.I.J.K.L. Subtropical desert –A.B.C.D.E.F.G.H.I.J.K.L. Estuary –A.B.C.D.E.F.G.H.I.J.K.L. Savanna –A.B.C.D.E.F.G.H.I.J.K.L. Wetland –A.B.C.D.E.F.G.H.I.J.K.L. Ocean –A.B.C.D.E.F.G.H.I.J.K.L. Temperate grassland

   A. This biome covers 70% of the Earth’s surface. B. This biome is identified by its hydrology, hydric soils, and hydrophytic vegetation. C. Xerophytic vegetation is dominant in this biome. D. This biome consists of tropical grassland with widely scattered low trees. E. This biome occurs where marine and freshwater habitats meet. F. This biome occurs in southern California and along the coast of the Mediterranean Sea. G. In summer, surface waters of this biome heat and do not mix with lower, cooler waters. H. Epiphytes are common in this biome. I. Blood-sucking insects are common in this biome during the brief summer. J. Forests in this biome are dominated by evergreen trees and deciduous trees that drop their leaves in autumn. K. This biome is dominated by coniferous or evergreen trees. L. In North America, the dominant grazer in this biome was the bison.