ecology

Which of the following is a renewable resource?A. MineralsB. Fossil fuelsC. LandD. Wind2. Which of the following examples of an ecological study involves the ecosystem level of organization?A. The effects of competition on survivalB. The effects of a disease on population sizeC. The effects of an invasive plant species on bird nesting sitesD. The effects of human activities on biogeochemical cycling3. The nitrogen utilized by most plants is derived fromA. the atmosphere.B. nitrogen gas.C. soil.D. decayed organic matter.4. Which one of the following conditions is an example of resource partitioning?A. A species of butterfly and a species of bee that pollinate the same flowerB. Two species of birds that eat fruit from the same treeC. Two species of squirrels—one that eats acorns from the branches and one that eats acorns that have fallen to the groundD. Two species of mice—one that eats seeds and the other that eats insects5. Which one of the following phrases describes many countries within Asia and Africa?A. LDCs experiencing rapid population growthB. LDCs experiencing slow population growthC. MDCs experiencing rapid population growthD. MDCs experiencing slow population growth6. A source from which organisms generally take elements is called a/anA. reservoir.B. biotic community.C. exchange pool.D. food web.7. Which of the following was one result of the Green Revolution?A. An increased reliance on polyculture agricultureB. The protection of species diversityC. An increase in the yield of crops for less-developed countriesD. The conservation of topsoil8. Which one of the following interspecies relationships has a negative effect on both species?A. PredationB. ParasitismC. CompetitionD. Commensalism9. Which of the following factors will have a greater impact on a population as the density of thatpopulation increases?A. Natural disasterB. ClimateC. WeatherD. Predation10. Study the following food chain: grass → snakes → rabbits → hawks. From this chain, you cancorrectly assume that each populationA. is a carnivore.B. is always larger than the one before it.C. is a species of herbivore.D. supports the next trophic level.11. The life history pattern in which population growth is logistic is calledA. biotic potential.B. opportunistic pattern.C. equilibrium pattern.D. population density.12. Modern fishing practices threaten biodiversity mainly through theA. accidental capture of unwanted species.B. chemical poisoning of the water.C. physical destruction of marine habitats.D. removal of community food supplies.13. In which of the following relationships do both species benefit?End of examA. MutualismB. CommensalismC. ParasitismD. Competition14. A complex of interconnected food chains in an ecosystem is called a/anA. food web.B. ecosystem.C. ecological pyramid.D. trophic stack.15. Which of the following doesn’t describe an MDC?A. It’s highly industrialized.B. It has undergone the demographic transition.C. Its age structure diagram resembles a pyramid.D. It generally experiences replacement reproduction