10/05/2020 Human Influences on Ecosystems(Senior Class Biology Study by Topics) 10/05/2020 0Comments by Gate Academy Please fill in the information below. NAME EMAIL PHONE NUMBER 1. What impact do the amounts of available energy, water, and oxygen have on an ecosystem? They recycle the residue of dead organisms They are used as nutrients They act as limiting factors They control the environmental temperature 2. A large area of forest was destroyed by fire. Which of the following will happen? The land will have more fresh air. Less soil will be eroded. More plants will be grown. Wildlife will be endangered 3. One biotic factors that limits the carrying capacity of any habitat is Amount of soil erosion The availability of water Activity of decomposers Level of atmospheric oxygen 4. Which of the following are non-biodegradable materials?I: WoodII: PlasticsIII:Styrofoam boxIV: Prawn shell I and II only I, II, III, and IV II, III, and IV only II and III only 5. Which of these food chains is in the correct order? Water lily, caterpillar, frog, snake Water lily, frog, caterpillar, snake Snake, frog, caterpillar, water lily Caterpillar, water lily, frog, snake 6. 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 water from evaporating To keep water from becoming a nonrenewable resource To keep the ocean levels from lowering To keep the polar ice caps from melting 7. What does the above picture show? Mutation Food web Food chain Parasitism 8. The burning of fossil fuels can lead to acid precipitation. What do fossil fuels generate that is needed to form acid precipitation? Water Energy Gas pollutants Particulate pollutants 9. We can reduce land pollution by _________________________________________.I: incinerating rubbishII: reducing deforestationIII: using organic pesticides in farmingIV: building taller chimneys for factories I and III only I, III and IV only II and III only I only 10. 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. II and III I, II and III I and II I and III 11. Coal is a nonrenewable natural resource. Why is coal considered nonrenewable? No new coal is being produced on Earth. Coal is used to produce energy and not materials. Coal will never run out. Coal is being used faster than it is being produced. 12. 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 only I, III, and IV only I, II, and III only I, II, and IV only 13. Eutrophication refers to a process of change that takes place in a body of water. Which of the following causes eutrophication? CFCs Acid rain Thermal Pollution Additional Nutrients 14. 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 II and III I and III I and IV 15. An example of a producer is: Water Lily Caterpillar Fungus Bird 16. Scientists think the continents once formed a large, single landmass that broke apart, and the continents slowly drifted to their present locations. What is the name given to this theory? Continental Movement Continental Drift Continental Shelf Continental Rise 17. What are the three types of symbiotic relationships between organisms? Symbiosis, commercialism, paralysis Mutualism, commensalism, parasitism All of the above is true Mutualism, competition, predation 18. Which is an abiotic factor that would affect the ability of a species of tree to survive in a particular habitat? Climax vegetation of the area Type and number of herbivores present Type and number of tree parasites Availability of minerals in the soil 19. Which human activity will most likely have a negative impact on global stability? Decreasing water pollution levels Decreasing habitat destruction Increasing recycling programs Increasing world population growth 20. Which of the following activities does not have a negative impact on the environment? Burning of fossil fuels Planting trees in a nature reserve Increasing the use of chlorofluorocarbons Using weedkillers for farming 21. Water pollution can affect the ability of organisms to survive. Which of these statements is true regarding the chemical pollution of water? Only a few chemicals dissolve in water. Chemical pollutants can come from both point-sources and nonpoint-sources. Chemical pollution is not regulated Chemical pollutants are harmful only if present in very high concentrations. 22. What are the three factors a niche includes? Habitat, food chain, oxygen cycle Food, Nonliving conditions, behavior Habitat, ecology, food Food, competition, energy pyramid 23. 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 metabolism Pass on most of the energy to their offspring Store all their energy in milk Convert solar energy to food 24. Adaptation is one of the parts of natural selection. What is an adaptation? A process by which inherited traits in a population change over generations A group of organisms that can mate to produce fertile offspring An inherited trait that improves chances of survival and reproduction for a group of individuals in a population A process by which individuals that are better adapted are more likely to camoflage themselves to their environment 25. A fungus is an example of: An omnivore An herbivore An autotroph A saprophyte 1 out of 25 Time is Up! Time's up
