AP Biology- Ecology- 10 Questions 1. Which of the following best describes the relationship between a predator and its prey? a) Both species benefit from the interaction. b) The predator benefits while the prey is unaffected. c) The predator benefits while the prey is harmed. d) Both species are harmed by the interaction. 2. Which of the following is an example of a density-dependent factor that influences population growth? a) Natural disasters b) Temperature fluctuations c) Predation d) Availability of sunlight 3. What is the term used to describe the total mass of living organisms in a given area or ecosystem? a) Biomass b) Trophic level c) Biodiversity d) Nutrient cycling 4. Which of the following best describes the process by which energy moves through trophic levels in an ecosystem? a) Photosynthesis b) Cellular respiration c) Nitrogen fixation d) Energy flow 5. What is the primary source of energy for most ecosystems on Earth? a) Sunlight b) Geothermal energy c) Chemical reactions d) Organic matter 6. Which of the following is an example of a mutualistic relationship in an ecosystem? a) A lion preying on a zebra. b) A bee pollinating a flower. c) A cow grazing on grass. d) A snake consuming a mouse. 7. What is the term used to describe the process by which nutrients are recycled through an ecosystem? a) Biomagnification b) Nitrogen fixation c) Nutrient cycling d) Trophic cascade 8. Which type of ecological succession occurs in an area that was previously inhabited but has undergone a disturbance, such as a fire or flood? a) Primary succession b) Secondary succession c) Climax community d) Pioneer community 9. Which of the following is a biotic factor in an ecosystem? a) Temperature b) Sunlight c) Soil pH d) Predators 10. What is the term used to describe the range of environmental conditions in which a species can thrive and reproduce? a) Ecological niche b) Keystone species c) Habitat d) Species diversity Loading … Back to AP Practice Test
