HomeFree SAT BIOLOGY questions SAT Biology Practice Test Ecology Questions 1. Which of the following is NOT to be considered as a density-dependent factor affecting population size? parasitism tornado disease epidemic competition predation 2. The role of a particular species within an ecosystem, including all of its interactions with both biotic and abiotic factors, is known as the species habitat habit ecological niche carrying capacity environment 3. The interaction between termites and the particular strains of bacteria that live in their gut are considered as mutualistic. This type of interactions among species is characterized as −/−. +/0. +/+. −/0. +/−. 4. Which of the following best describes a pattern of idealized population growth that is restricted by limiting factors? carrying capacity model logistic growth model exponential growth model dispersion model habitat cap model 5. Which of the following statements is correct regarding species? A population is a local subset of a species. A species is one type of population. A species is a local subset of a population. A population encompasses many different species. The terms population and species are interchangeable. 6. Which of the following terms best encompasses all of the populations of organisms living together and potentially interacting in an area? biome ecosystem ecological niche biological community geographical community 7. The human population, from Stone Age times to the present, is best represented by a normal distribution curve. an exponential growth curve. a logistic growth curve. a bimodel distribution curve. a random growth curve. 8. If a population exceeds the carrying capacity of the ecosystem, the most likely outcome would be an increase in resources to meet its needs. extinction of the species. an eventual decline in population size. a steady increase in population size. maintenance of the current population size indefinitely 9. The use of specially bred strains of bacteria to clean up oil spills along beaches is an example of ecological succession. decomposition bioremediation eutrophication primary succession 10. The two fundamental processes that govern the dynamics of an ecosystem are energy flow and nutrient cycling. the carbon cycle and photosynthesis solar radiation and the carbon cycle photosynthesis and respiration. the nitrogen cycle and the phosphorous cycle. Score = Correct answers: Tags: Free SAT BIOLOGY questions MCQ Quiz on Ecology SAT Biology Practice Test Facebook Twitter