Ecology Regents Practice Exam

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• What role does the ozone layer play in the ecosystem?
• How do biotic factors differ from abiotic factors in an ecosystem?
• Why is the percent ice cover significant for eagles obtaining food?
• What is the significance of the carbon cycle?
• What does carrying capacity refer to in an ecological context?
• Which of the following is NOT an abiotic factor?
• What is the primary function of plants in the water cycle?
• What role do decomposers play in an ecosystem?
• What happens to the grass population if cows are removed from the ecosystem?
• What potential benefit might arise from removing cormorants from the fishing industry ecosystem?
• What is a consequence of changes in species distributions due to climate change?
• What can trigger a trophic cascade?
• Which type of species plays a crucial role in maintaining the structure of an ecosystem?
• What defines a trophic level in an ecosystem?
• Which type of ecosystem would be considered most resilient?
• Which human activity might increase biodiversity?
• What aspect of ecosystems is significantly impacted by climate change?
• What is the greenhouse effect?
• What is the main cause of ocean acidification?
• What is the function of biodiversity hotspots?
• What does the term "keystone species" refer to?
• Define an ecosystem.
• How have humans contributed to changes in atmospheric CO2 levels?
• How does the use of wind energy benefit the environment?
• How does carrying capacity affect predator populations?
• Which factor is often affected by climate change in ecosystems?
• What are trophic levels in an ecosystem?
• What are abiotic factors in an ecosystem?
• What is a keystone species?
• What defines consumers in an ecosystem?
• What is a disadvantage of installing a green roof?
• What is the difference between autotrophs and heterotrophs?
• What is a potential ecological response following a flood that destroys a plant community?
• What is one beneficial role that the strawberry poison dart frog plays in its ecosystem?
• What is one ecological advantage of using oxpeckers to manage tick populations?
• What role does ocean temperature play in coral reef ecosystems?
• What are wetland ecosystems BEST described as?
• What does biogeochemical cycling refer to?
• How do atmospheric gases contribute to the greenhouse effect?
• What is depicted by a trophic pyramid?
• What is one impact of an ecological footprint?
• Which of the following best defines ecological succession?
• What can be a direct consequence of decreased plant life in an ecosystem?
• Why is a decrease in ice mass negatively impacting penguin populations?
• What positive environmental effect can using a specific MKS device provide?
• Which renewable energy source has the advantage of being free to harness?
• What is a likely consequence of reduced krill population for penguins?
• What role do producers play in an ecosystem?
• What could result from fewer oxpeckers due to pesticide use?
• What is an ecological footprint?
• What does carrying capacity indicate?
• What process allows organisms to adapt to their environments?
• Why were coyotes not in competition with lynx before the presence of packed snow trails?
• What does biodiversity refer to?
• What role do food webs play in an ecosystem affected by climate change?
• What is a common characteristic of mutualism in symbiotic relationships?
• How do human activities lead to habitat destruction?
• Which of the following is an example of a biotic factor?
• Which statement best describes a primary producer?
• Define the term "ecological footprint."
• Define habitat.
• What is one major impact of overfishing on marine ecosystems?
• What does the term symbiosis describe?
• What abiotic factor most likely limits the size of an acacia shrub population?
• What role does vegetation play in the water cycle?
• What community action could support the Solid Waste Management Act of 1988?
• Which action can reduce the impact of solid waste in a community?
• What process in the nitrogen cycle converts atmospheric nitrogen into usable forms for living organisms?
• Which process contributes most to the cycling of carbon in the ecosystem?
• What is a significant impact of urban development on ecosystems?
• What does carrying capacity refer to in an ecosystem?
• If lake sturgeon are introduced into an ecosystem, which population is likely to decrease?
• What effect does the removal of caterpillars from the food chain have?
• What is one advantage of owning a solar-powered car?
• Which of the following is a significant advantage of using biofuels instead of fossil fuels?
• How do temperature and moisture affect biodiversity in ecosystems?
• What niche are the lynx, coyote, and cougar competing to fill?
• What defines a biome?
• Which best defines a food web?
• What characterizes temperate forests?
• What defines parasitism?
• What is the primary focus of population ecology?
• What is an endemic species?
• What is a concern for ecologists regarding the removal of federal protection for wolves?
• What is a primary effect of climate change on ecosystems?
• Which factor could hinder recycling efforts in a community, and how could it be addressed?
• Why is it critical to protect the habitat of the strawberry poison dart frog?
• How is the wolf population naturally controlled in the environment?
• How does an energy pyramid differ from a food web?
• If herbicides are spilled in a lake, what impact might this have on fish populations?
• What is one way to reduce animals' exposure to bisphenol-A?
• What role do primary consumers play in an ecosystem?
• What is a key focus of conservation biology?
• What would likely happen to the ant population if grasses were removed from their ecosystem?
• Which of the following is a direct result of overfishing?
• What are primary producers also known as?
• What is the primary function of wetlands?
• What is the main impact of invasive species on native ecosystems?
• What is an example of a biome?
• What is the significance of pollinators in food production?
• What is meant by "edge effect" in ecology?
• What does the carbon cycle describe?
• What can be a long-term effect of climate change on species?
• What defines an ecological pyramid?
• What does population density describe?
• What consequence can result from climate change in relation to extinction?
• Which of the following best defines a habitat?
• What abiotic factor is crucial for the stability of coral reef ecosystems?
• How can soil composition impact plant growth?
• Which symbiotic relationship involves both species benefiting?
• Which group of organisms is responsible for breaking down dead organic matter?
• In mutualism, what occurs?
• Why might bird populations take longer to recover from an oil spill compared to mammal populations?
• Which of the following best describes producers in an ecosystem?
• In what way does deforestation affect ecosystems?
• Which of the following is a role of producers in an ecosystem?
• How does energy flow through an ecosystem?
• What impact does overfishing have on marine ecosystems?
• What is the role of apex predators in an ecosystem?
• What possible effect could the increased deaths of birds have on the ecosystem?
• What is the effect of increased CO2 levels in the atmosphere on oceans?
• Which of the following populations is most likely to increase if red ants are not being fed on by caterpillars?
• Why were wolves removed from the food web despite their ecological value?
• What is a potential relationship between CO2 levels and Antarctic ice mass changes?
• What does the term "trophic cascade" refer to?
• What is a potential risk of introducing Sedum, a non-native plant, into an established ecosystem?
• How can climate change influence biodiversity?
• Which factors contribute to an organism's range?
• What impact does urbanization have on ecosystems?
• What is the significance of the ozone layer?
• What does ecosystem resilience refer to?
• What is one consequence of losing pollinators in an ecosystem?
• How does not mowing a field affect ecological succession?
• Which principle is central to the study of ecosystems within conservation biology?
• What role do wetlands serve in ecosystems?
• What makes both plants and solar panels sources of renewable energy?
• How does pollution impact ecosystems?
• What is a significant ecological function of coral reefs?
• Which of the following relationships is characterized as harmful to one organism?
• What does niche differentiation involve?
• What concern might scientists have regarding the small sample size of salamanders in the experiment?
• What is the primary source of energy for life on Earth?
• What is the greenhouse effect?
• What is the final stage of ecological succession called?
• What is a trophic cascade?
• How do climate and weather differ in ecological studies?
• How is carrying capacity defined?
• What does eutrophication lead to in aquatic environments?
• How does increased atmospheric CO2 relate to climate change?
• Why might researchers choose to conduct salamander experiments in an artificial environment?
• What population might increase following the introduction of lake sturgeon into an ecosystem?
• What effect does habitat fragmentation usually have on wildlife?
• Which term best describes the boundaries between different habitats where population changes occur?
• Why is Plasmodium classified as a parasite?
• What is one alternative action that could help preserve the fishing industry in Lake Ontario?
• What is a common characteristic shared by both food chains and food webs?
• What characterizes an invasive species?
• What could be a negative effect of introducing a natural predator for pest control?
• Which of the following is true about natural selection?
• What is a likely consequence of the elk population increasing due to the removal of wolves?
• What could be a consequence of a decreased use of pesticides for mosquito control?
• Why is drilling for oil in the Gulf of Mexico considered a trade-off?
• What is a disadvantage of solar-powered cars?
• What characterizes commensalism?
• What is the primary focus of ecology?
• What is the definition of an ecological niche?
• What does an energy pyramid illustrate?
• What ecological role does the lake sturgeon fulfill in its new ecosystem?
• What is one reason why it is important to reduce the amount of carbon dioxide in the atmosphere?
• What is the relationship between species adaptation and reproduction?
• Which of the following abiotic factors can influence species distribution?
• What does "endangered species" refer to?
• What is biological magnification?
• What does "bioaccumulation" describe?
• Which factor primarily drives overfishing?
• What happens to fish populations when overfishing occurs?
• What is the primary focus of ecological succession?
• How is overfishing characterized?
• What is the term for the gradual process by which ecosystems change and develop over time?
• What characterizes a biome?
• What differentiates primary succession from secondary succession?
• What does habitat fragmentation lead to?
• Which process is NOT part of the nitrogen cycle?
• Why would hawks have a decreased survival rate if a disease wiped out their food source?
• Why are invasive species considered problematic in ecosystems?
• What is one specific benefit of increasing recycling efforts in New York State?
• How does the widespread use of solar panels help combat global warming?
• Which factor would likely increase the carrying capacity of an environment for a species?
• Why is it essential to maintain the stability of coral reefs?
• What does the term "niche" refer to in an ecosystem?
• Why is the water cycle significant for ecosystems?
• How do human activities influence the water cycle?
• Which factor is crucial for maintaining biodiversity in ecosystems?
• Is the concern about the MKS device affecting beneficial insects valid?
• What role do decomposers play in an ecosystem?
• Which biome is characterized by very low temperatures and permafrost?
• What is the primary process by which plants convert sunlight into chemical energy?
• Which of the following is a goal of conservation biology?
• Which of the following factors can affect the survival and reproduction of species?
• What are the two main components of climate that affect biomes?
• How does energy primarily flow through an ecosystem?
• What is biodiversity?
• How does natural selection contribute to evolution?
• Which term describes a community of living organisms alongside their physical environment?
• What is the primary function of a producer in an ecosystem?
• Why are zebra mussels classified as an invasive species?
• In an ecosystem, which organism is typically at the top of the food chain?
• What is a biogeochemical cycle?
• Which of the following food chains includes a producer?
• What does carrying capacity refer to in population ecology?
• What is the role of mycorrhizal fungi in ecosystems?
• What element is primarily involved in the process of photosynthesis?
• What is one method to help maintain coral reef health?
• What role do phytoplankton serve in aquatic ecosystems?
• What ecological role do oxpeckers play in managing tick populations?
• Which statement best describes heterotrophs?
• What is ecological restoration?
• What does biodiversity refer to?
• What differentiates autotrophs from heterotrophs?
• In an experiment testing temperature effects on daphnia population size, what is the independent variable?
• Which species might increase in number if cormorants are removed from the food web?
• What is a key characteristic of ecosystems with high biodiversity?
• What determines the number of predators that can be supported in an area?
• What is the term for a group of organisms of the same species living in the same area?
• How could cutting down a forest case a change in biodiversity?
• What role do producers play in an ecosystem?
• How are invasive species typically introduced to new environments?
• How does the presence of coral reefs affect coastal areas?
• How was the mesopredator population controlled before wolves were removed from the ecosystem?