APES Exam Review | 95 Questions with 100% Correct Answers | Updated & Verified

What is an ecosystem? - a location on earth that includes interacting living (biotic) and nonliving (abiotic) components. What percentage of energy is lost as trophic level increases? - only 10% of energy is transferred from one trophic level to another. What is the Tragedy of the Commons? - The destruction of a natural habitat known as a common that was overgrazed by sheep The addition of a limiting nutrient to an ecosystem may lead to an algal bloom. What effect will this algal bloom have on the oxygen content of the water? - The algae bloom will cause the oxygen content of the water to decrease, leading to hypoxic conditions What has the largest impact on the resilience of an ecosystem? - The amount of genetic biodiversity of the ecosystem. What process of selection can be controlled most directly by humans? - Artificial selection what are the primary air pollutants? - Carbon Monoxide, Nitrogen Dioxide, Sulfur Dioxide, Lead