Barrons AP Environmental Science

(D) Refer to the biome descriptions. ...

(D) Less energy is available at each trophic level because energy is lost by organisms through cellular ...

(E) Estuaries form a transition zone between river environments and ocean environments and are subject to ...

(B) Specialized niches are more susceptible to environmental changes and have a direct effect on the stability ...

(C) Specialist species are adapted to a narrow range of habitats and conditions, while generalist species are ab ...

(C) The question of determining whether it is a deciduous forest or grassland is dependent on yearly pattern ...

(B) Primary succession occurs on bare rocks and starts with lichens. Secondary succession occurs in areas w ...

(E) Scientists warn that human activities may be bringing about the sixth mass extinction of species in t ...

(E) Convergent evolution describes the process whereby organisms not closely related independently acquire similar cha ...

(B) “Species” is defined as a group of organisms that look similar, have the ability to interbreed, and ...

(A) Adaptive radiation is the development of many species that are derived from a single, ancestral populat ...

(C) Natural selection is the process by which only the organisms that are best adapted to their environment ...

(D) The distribution of biomes is primarily determined by global climatic zones as measured by average annual ...

(D) An indicator species is a species whose presence, absence, or relative well-being in a given environmen ...

(D) Interspecific competition is competition among members of different species. ...

(B) Ecosystems undergo secondary succession following some artificial or natural disturbance such as a forest ...

(B) A habitat is the location where a particular species lives and grows. A microhabitat is the immediate s ...

(C) The taiga, also known as boreal forest, is the world’s largest land biome, and makes up almost a third ...

surface but are home to 50–70% of all plant and animal life-forms on Earth. Rainforests are the most productive a ...

Possible answers might include the following points: ■ Turbidity is the result of suspended particulate matter i ...