10/05/2020Human Influences on Ecosystems(Senior Class Biology Study by Topics) 0Comments by Gate Academy Please fill in the information below. NAME EMAIL PHONE NUMBER 1. Which is an abiotic factor that would affect the ability of a species of tree to survive in a particular habitat? Type and number of tree parasites Climax vegetation of the area Type and number of herbivores present Availability of minerals in the soil2. A large area of forest was destroyed by fire. Which of the following will happen? Less soil will be eroded. The land will have more fresh air. Wildlife will be endangered More plants will be grown.3. ________ is a close relationship between two or more organisms of different species Symbiosis Marriage All of the above Parasitic4. 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, II, and III only I and II only I, II, and IV only I, III, and IV only5. The burning of fossil fuels can lead to acid precipitation. What do fossil fuels generate that is needed to form acid precipitation? Particulate pollutants Gas pollutants Energy Water6. 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 polar ice caps from melting To keep water from becoming a nonrenewable resource To keep the ocean levels from lowering To keep water from evaporating7. For a producer to maintain itself, which factor must be present in its environment? Carnivores Parasites Herbivores Sunlight8. Lynnette is categorizing natural resources. Which of these is a nonrenewable resource she should include on her list? Water Oil Wind Solar energy9. We can reduce land pollution by _________________________________________.I: incinerating rubbishII: reducing deforestationIII: using organic pesticides in farmingIV: building taller chimneys for factories I only II and III only I, III and IV only I and III only10. Two closely related species of birds live in the same tree. Species A feeds on ants and termites, while Species B feeds on caterpillars. The two species coexist successfully because Each occupies a different niche They interbreed They live in different habitats They use different methods of reproduction11. Water pollution can affect the ability of organisms to survive. Which of these statements is true regarding the chemical pollution of water? Chemical pollutants can come from both point-sources and nonpoint-sources. Chemical pollutants are harmful only if present in very high concentrations. Only a few chemicals dissolve in water. Chemical pollution is not regulated12. What may result when the environment becomes unfavourable to the organisms?I: The organisms may die.II: The organisms may adapt.III: The organisms may move to another place. I and II II and III I, II and III I and III13. Which relationship is illustrated by a tapeworm living in the intestine of a human? Commensalism Predator--prey Mutualisms Parasitism14. A fungus is an example of: An autotroph An omnivore An herbivore A saprophyte15. What are the three types of symbiotic relationships between organisms? All of the above is true Mutualism, competition, predation Symbiosis, commercialism, paralysis Mutualism, commensalism, parasitism16. What does the above picture show? Mutation Food web Food chain Parasitism17. Insecticides and weedkillers will cause no harm to marine life. true false18. Which rocks can be changed into sediments by weathering and erosion? Igneous Sedimentary All of these Metamorphic19. Which of the following would be considered a natural resource? Steel Plastic Concrete Rock20. 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? Geographic barriers prevent the migration of animals to island habitats Destroyed environments can recover as a result of the process of ecological succession Destroyed ecosystems always return to their original state Altered ecosystems regain stability through the evolution of new plant species21. Adaptation is one of the parts of natural selection. What is an adaptation? A process by which individuals that are better adapted are more likely to camoflage themselves to their environment A group of organisms that can mate to produce fertile offspring A process by which inherited traits in a population change over generations An inherited trait that improves chances of survival and reproduction for a group of individuals in a population22. 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. III and IV I and III II and III I and IV23. What are the three factors a niche includes? Habitat, food chain, oxygen cycle Habitat, ecology, food Food, competition, energy pyramid Food, Nonliving conditions, behavior24. The source of energy for almost all life on earth is: Animals Sunlight Water Fungi25. Organisms that eat cows obtain less energy from the cows than the cows obtain from the plants they eat because of the cows. Convert solar energy to food Pass on most of the energy to their offspring Store all their energy in milk Use energy for their own metabolism26 out of 25Time is Up!