10/05/2020 Human Influences on Ecosystems(Senior Class Biology Study by Topics) 0Comments by Gate Academy Please fill in the information below. NAME EMAIL PHONE NUMBER 1. Many years ago, a volcanic eruption killed many plants and animals on an island. Today the island looks much as it did before the eruption. Which statement is the best possibly explanation for this? Destroyed environments can recover as a result of the process of ecological successionAltered ecosystems regain stability through the evolution of new plant speciesGeographic barriers prevent the migration of animals to island habitatsDestroyed ecosystems always return to their original state2. An example of a producer is:FungusWater LilyBirdCaterpillar3. Everyone uses natural resources. How do natural resources benefit humans?Natural resources improve lives.Natural resources are readily available.Natural resources are in unlimited supply.Natural resources are low cost.4. Earth's surface is mostly water. However, only a small amount of water on Earth is clean freshwater. Why is it important to maintain water quality?To keep the ocean levels from loweringTo keep water from evaporatingTo keep the polar ice caps from meltingTo keep water from becoming a nonrenewable resource5. Which of the following are non-biodegradable materials?I: WoodII: PlasticsIII:Styrofoam boxIV: Prawn shellII and III onlyI, II, III, and IVI and II onlyII, III, and IV only6. One biotic factors that limits the carrying capacity of any habitat isAmount of soil erosionLevel of atmospheric oxygenActivity of decomposersThe availability of water7. How does maintaining water quality help ecosystems?It prevents pollution from poisoning living thingsIt helps hydroelectric power plants make more electricity.It helps freshwater ecosystems obtain more salt water.It prevents them from becoming deserts.8. A large area of forest was destroyed by fire. Which of the following will happen?Less soil will be eroded.Wildlife will be endangeredMore plants will be grown.The land will have more fresh air.9. Which rocks can be changed into sediments by weathering and erosion?MetamorphicAll of theseSedimentaryIgneous10. The use of plastic materials adds to the pollution of the environment. Which of the following statements explain it?I: They take a very long time to decompose.II: They are produced from natural resources.III: They are waterproof.IV: They produce harmful gases when burnt.I and IVI and IIIII and IIIIII and IV11. Scientists use absolute dating to determineThe chemical composition of rocksThe numerical age of an object in yearsThe physical appearance of fossilsThe approximate date of a rock layer or fossil12. A fungus is an example of: A saprophyteAn omnivoreAn autotrophAn herbivore13. The removal of nearly all the predators from an ecosystem would most likely result inAn increase in the number of herbivoresA decrease in new predators migrating into the ecosystemAn increase in the number of carnivore speciesA decrease in the size of decomposers14. ________ is a close relationship between two or more organisms of different speciesAll of the aboveParasiticMarriageSymbiosis15. Kelly disposed off some clear liquid chemicals into a lake. Which of the following would be observed in the pond community?I: A smell could be detected from the lake.II: The water in the lake was stagnant.III: Dead fishes can be seen floating on the surface of the lake.IV: Leaves of plants growing by the lake turned brown.I and II onlyI, III, and IV onlyI, II, and IV onlyI, II, and III only16. Sustainable practices are activities that can be carried on for years and years without using up all the resources in an area. A community needs food every year, and a sustainable farm can produce crops every year for that community. Why is it important to use land in a sustainable way? It helps a community grow more crops every year.It helps conserve land resources for future use.It helps a farmer make more money the first year.It helps save crops and food for future use.17. For a producer to maintain itself, which factor must be present in its environment? SunlightHerbivoresParasitesCarnivores18. Tectonic plates may move because of convection currents that occur in the mantle. What is convection?The transfer of energy as earthquake waves.The process that breaks down rocks.The transfer of energy due to the movement of matter.The transfer of energy through materials in direct contact.19. What are the three factors a niche includes?Food, Nonliving conditions, behaviorHabitat, food chain, oxygen cycleFood, competition, energy pyramidHabitat, ecology, food20. Which human activity will most likely have a negative impact on global stability?Increasing recycling programsIncreasing world population growthDecreasing water pollution levelsDecreasing habitat destruction21. Organisms that eat cows obtain less energy from the cows than the cows obtain from the plants they eat because of the cows. Use energy for their own metabolismStore all their energy in milkConvert solar energy to foodPass on most of the energy to their offspring22. Coal is a nonrenewable natural resource. Why is coal considered nonrenewable?Coal is being used faster than it is being produced.Coal will never run out.No new coal is being produced on Earth.Coal is used to produce energy and not materials.23. Which of the following activities does not have a negative impact on the environment?Planting trees in a nature reserveBurning of fossil fuelsUsing weedkillers for farmingIncreasing the use of chlorofluorocarbons24. The burning of fossil fuels can lead to acid precipitation. What do fossil fuels generate that is needed to form acid precipitation?Particulate pollutantsGas pollutantsWaterEnergy25. Lynnette is categorizing natural resources. Which of these is a nonrenewable resource she should include on her list?Solar energyOilWaterWind26 out of 25Time is Up! Time's up
