A lack of food prevents further growth in a deer population. This is an example of a _____. A)Range of tolerance B)Limiting factor C)Photic zone D)Biome

The annual rainfall is 75-150 cm and the range of temperature is -30°C to 30°C. What type of forest is being described? •A)Tropical rain forest B)Coniferous Forest C)Tundra D)Temperate Deciduous Forest

The changes in communities that take place on a new island would best be described as _____. A)Primary succession B)Secondary succession C)Tertiary succession D)None of the above

Permafrost is characteristic of which biome? A)Tundra B)Marine C)Desert D)Taiga

Which of the following might be a limiting factor in an organism’s survival? A)Temperature B)Food availability C)Abundance of predators D)All of the above

Which area of the lake is dominated by plankton? A)Limnetic zone B)Littoral zone C)Profundal zone D)Aphotic zone

Which of the following determines whether a zone is photic or aphotic in aquatic ecosystems? A)Distance from land B)Distance from equator C)Water depth D)All of the above

Nutrient-poor lakes are described as ______. A)eutrophic B)ootrophic C)omnitrophic D)oligotrophic

Which biome consists of coniferous plants and birds that migrate during winter. A)Taiga B)South pole C)Temperate deciduous forest D)Savanna

The kangaroo rat conserves its water and obtains all its from the food it eats. In what ecosystem is the kangaroo rat more likely to live? A)Tropical rain forest B)Taiga C)Desert D)Savanna

Which of the following would be a pioneer species in a rocky area? A)Insect B)Lichen C)Weed D)Fern

Certain bacteria are able to thrive in extremely acidic environments where most organisms could not survive. This is an example of different organisms having different — A)tolerances. B)biotic factors. C)abiotic factors. D)None of the above