AP Environmental Science- The Living World By Jane Eastwood | 1. Which of the following is an example of a keystone species? a) Bald eagle b) White-tailed deer c) Gray wolf d) Red-tailed hawk 2. The process by which two species evolve in response to each other over time is known as: a) Mutualism b) Coevolution c) Parasitism d) Commensalism 3. Which of the following best describes a generalist species? a) Species that can tolerate a wide range of environmental conditions b) Species that are highly specialized and have narrow niches c) Species that are endemic to a specific geographic area d) Species that are at the top of the food chain 4. The process by which individuals with certain heritable traits are more likely to survive and reproduce is known as: a) Natural selection b) Genetic drift c) Gene flow d) Mutation 5. Which of the following best describes an indicator species? a) Species that are highly sensitive to environmental changes and can provide early warning signs of ecosystem health b) Species that are important for the cultural or economic value they provide to humans c) Species that have a significant impact on the structure and function of an ecosystem d) Species that are at risk of extinction and require conservation efforts 6. The process by which one species benefits while the other is unaffected is known as: a) Mutualism b) Commensalism c) Parasitism d) Competition 7. The loss of genetic diversity in a population due to a drastic reduction in its size is known as: a) Genetic drift b) Speciation c) Natural selection d) Gene flow 8. Which of the following best describes the concept of a trophic cascade? a) The transfer of energy between different trophic levels in an ecosystem b) The impact of a predator on the abundance or behavior of its prey, which then affects lower trophic levels c) The seasonal movement of animals from one habitat to another d) The process of energy flow through a food web 9. Which of the following is an example of interspecific competition? a) Two lionesses hunting together b) Two bird species building nests in the same tree c) A tick feeding on a deer d) A bee pollinating a flower 10. Which of the following is a characteristic of a K-selected species? a) High reproductive rate b) Short lifespan c) Small body size d) Late reproductive maturity 11. Which of the following is an example of primary succession? a) Forest regrowth after a wildfire b) Re-colonization of an abandoned agricultural field c) Recovery of an ecosystem after a small-scale disturbance d) Mosses and lichens colonizing bare rock 12. The number of different species in a given area is referred to as: a) Species richness b) Species evenness c) Species abundance d) Species diversity 13. Which of the following is a characteristic of an r-selected species? a) High parental care b) Long lifespan c) Large body size d) Early reproductive maturity 14. The process by which nutrients are transferred between different components of an ecosystem is known as: a) Nutrient cycling b) Nutrient pollution c) Nutrient runoff d) Nutrient assimilation 15. Which of the following factors is most likely to contribute to a decrease in genetic diversity within a population? a) Increased gene flow b) Decreased mutation rate c) Small population size d) High reproductive rate Loading … Posted in Other
