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- 1. Multiple ChoiceA herd of zebras would be considered acommunityspeciesecosystempopulation
- 2. Multiple ChoiceTwo organisms of different species exist in a relationship in which each individual benefits from the activity of the other:commensalismparasitismherbivorymutualism
- 3. Multiple ChoiceAll of the following are density-dependent factors that limit animal populations EXCEPT.weatherpredationfood competitionbirthrate
- 4. Multiple Choice
Which of the following is a primary consumer in this food web?FoxesCarrotsMiceOwls - 5. Multiple ChoiceWhich organism contains the most energy?RabbitGrainsBirdsMice
- 6. Multiple ChoiceWhich point on the graph represents carrying capacity?ABCD
- 7. Multiple ChoiceWhy is only 10% of the energy passed along to the next trophic level?90% is lost through heat, reproduction, and movement90% is gained90% is lost in light energybecause only 10% is lost
- 8. Multiple ChoiceAll of the following statements concerning characteristics of predator-prey relationship are correct EXCEPT:Camouflage is an adaptation that protects prey.A rise in the population of predators is followed by a decreased in the population of prey.A rise in the population of prey is often followed by a rise in the population of predators.The population of predators most often eliminates the population of prey
- 9. Multiple ChoiceWhich of the following best explains why there are seldom more than five trophic levels in a food chain?Most carnivores function at more than one trophic levelTrophic levels about this numbers contain too many individualsEnergy is lost from each trophic levelThe ecosystem contains too much biomass
- 10. Multiple ChoiceWhich of the following represents the combination of all relevant environmental variables in which a species or population lives?cladehybrid zonephylogenyecological niche
- 11. Multiple ChoiceWhich of the following encompases all the others?ecosystemcommunitypopulationindividual
- 12. Multiple ChoiceRefer to the diagram of the survivorship curve.
Which curve best describes an organism that invests a lot of energy in parenting?ABCthis is not a survivorship curve - 13. Multiple ChoiceA species described as r-strategist would definitely NOT have which of the following characteristics?clumped population patternmuch parentingmany offspringrandom population pattern
- 14. Multiple ChoiceWhich letter shows the the exponential growth of a population?ABCD
- 15. Multiple ChoiceThe two species, Paramecium aurelia and Paramecium caudatum, which do not prey upon each other, fighting to grow in the same test tube is an example of which of the following?CompetitionPredationCommensalismExclusion
- 16. Multiple ChoiceThe maximum population size for a species based on the environmental factors is calledecological footprintcarrying capacitypopulation growthenvironmental capacity
- 17. Multiple ChoiceThere are 200 bears in an area. 10 emigrate, 15 immigrate, 10 are born and 20 die. How many are left?195205200260
- 18. Multiple ChoiceA group of interbreeding individuals occupying the same area is best calledcommunitypopulationecosystemsymbiotic relationship
- 19. Multiple ChoiceRefer to a population of 500 that experiences 55 births and 5 deaths during a one year period.
If the population maintains the current growth pattern, a plot of its growth would resemble which of the following?exponential growthfluctuating growthK-selected growthlogistic growth - 20. Multiple ChoiceWhen two species of cattails are grown together, they grow at different water depths and coexist. When grown alone, they grow at similar water depths. Which of the following is best demonstrated by the data?natural selectioncharacter displacementresource partitioningecological succession
- 21. Multiple ChoiceWhich of the following correctly describes the interactions between T. castaneum and the parasite.The parasite decreases the population density of beetles in each culture dish.The parasite increases the population density of beetles in each culture dish.The parasite has no effect on the population density of the beetles.
- 22. Multiple Choice
What is the rate of change for the population grown without a parasite from day 200 to day 400?
200 days
a loss of approximately 15 beetles/200 days
a loss of approximately 30 beetles/200 days
30 beetles
- 23. Multiple ChoiceHow do matter and energy flow differently?Energy flows in one direction, matter is recycledMatter flows in one direction, Energy is recycledEnergy and Matter are both recycledEnergy and Matter both flow in one direction
- 24. Multiple ChoiceWhich of the following is an example of a density-independent limiting factor?A parasiteA natural disasterA decrease in preyA food shortage
- 25. Multiple ChoicePrimary consumer's energy is 54,000 joules. How much energy was provided to secondary consumers?53,460 J540 J5,400 J54 J
- 26. Multiple ChoiceA team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the feeding patterns the ecologists observed. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?There is less energy available in the producers because their tissues are less dense than those at higher trophic levels.There is more energy available in the second trophic level because less energy is needed for hunting compared to the higher trophic levels.There is less available energy in the fourth trophic level because of the loss of energy through metabolism in each of the lower trophic levels.There is more available energy in the birds of prey because they have greater muscle mass for storing energy than organisms in lower trophic levels have.
- 27. Multiple ChoiceA team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the feeding patterns the ecologists observed. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?There is less energy available in the producers because their tissues are less dense than those at higher trophic levels.There is more energy available in the second trophic level because less energy is needed for hunting compared to the higher trophic levels.There is less available energy in the fourth trophic level because of the loss of energy through metabolism in each of the lower trophic levels.There is more available energy in the birds of prey because they have greater muscle mass for storing energy than organisms in lower trophic levels have.
- 28. Multiple ChoiceA team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the feeding patterns the ecologists observed. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?There is less energy available in the producers because their tissues are less dense than those at higher trophic levels.There is more energy available in the second trophic level because less energy is needed for hunting compared to the higher trophic levels.There is less available energy in the fourth trophic level because of the loss of energy through metabolism in each of the lower trophic levels.There is more available energy in the birds of prey because they have greater muscle mass for storing energy than organisms in lower trophic levels have.
- 29. Multiple Choice__________ growth shows growth of a population under environmental constraints (carrying capacity-K) that sets a maximum population sizelogisticexponentialnicheuniform
- 30. Multiple Choice________ grow slowly over time, cares for its young over a long period of time and is usually near the carrying capacity of its ecosystem.K-strategistsR-strategistsUniform strategistsenvironmentalists
- 31. Multiple ChoiceThese types of organisms which multiply rapidly in numbersR-strategistsK-strategistspredatorsmutualists
- 32. Multiple Choice
Species richness is measure of the number of different species living in an ecosystem. Which of the following would be indicated by species richness?
dispersal patterns
amount of biodiversity
density of a population
level of productivity exhibited within the ecosystem
- 33. Multiple ChoiceA species that exerts a large, positive impaction on its ecosystem is known as a:Keystone speciesInvasive speciesIndicator speciesPoached species
- 34. Multiple Choice
In most ecosystems, net primary productivity is important because it represents the
Energy used in respiration by herbivores
Total solar energy converted to chemical energy by producers
Biomass for all producers
Energy available for trophic levels above producers
- 35. Multiple ChoiceWhat are examples of pioneer species in a primary succession?Bushes and ShrubsOak treesMossess and LichensA rose Bush
- 36. Multiple Choice
What is the most important function of pioneer species?
To function as decomposers
To create soil and add nutrients
Facilitation of the water cycle
Food for animals
- 37. Multiple ChoiceAfter a forest fire, an ecosystem would start regrowth through -primary successionsecondary successionclimax communitylimiting factors
- 38. Multiple ChoiceIf a blue catfish is introduced and eats the large fish who eat the smaller fish, what will happen to the population of the smaller fish?IncreaseDecreaseStay the sameNo affect on smaller fish
- 39. Multiple ChoiceWhat effect will an invasive species have on the carrying capacity of an ecosystem?The carrying capacity will increaseThe carrying capacity for everyone will decreaseThe carrying capacity will only decrease for those in competition for same resourceThe carrying capacity for all animals will stay the same
- 40. Multiple ChoiceKudzu has overgrown many parts of southern Missouri and native ground plants have disappeared from the area. This is an example of:Parasitism between kudzu and the native plantsA predator prey relationship between ground plants and kudzuCompetition occurring between the native and invasive speciesCommesalism occurring between the kudzo and native plants
- 41. Multiple ChoiceJ-Shaped curvesshow a decline after an increasedisplay populations that have reached carrying capacityrepresent exponential growthdoes not depend on the numbe rof resources
- 42. Multiple ChoiceA herd of zebras would be considered acommunityspeciesecosystempopulation
- 43. Multiple ChoiceTwo organisms of different species exist in a relationship in which each individual benefits from the activity of the other:commensalismparasitismherbivorymutualism
- 44. Multiple ChoiceThis population pyramid shows thatthe Ukraine population is in a rapid declinethe Ukraine population is in a rapid increasethe Ukraine population is in a stable and steady statemen outlive women in the Ukraine
- 45. Multiple ChoiceWhich of the following best explains why there are seldom more than five trophic levels in a food chain?Most carnivores function at more than one trophic levelTrophic levels about this numbers contain too many individualsEnergy is lost from each trophic levelThe ecosystem contains too much biomass
- 46. Multiple ChoiceAll of the following are density-dependent factors that limit animal populations EXCEPT.weatherpredationfood competitionbirthrate
- 47. Multiple ChoiceThere are 200 bears in an area. 10 emigrate, 15 immigrate, 10 are born and 20 die. How many are left?195205200260
- 48. Multiple ChoiceWhy is only 10% of the energy passed along to the next trophic level?90% is lost through heat, reproduction, and movement90% is gained90% is lost in light energybecause only 10% is lost
- 49. Multiple ChoiceWhich is not correct about the aquatic biome?it covers about 75% of the earthit is characterized by how much salt is present in the waterestuaries are located at the mouth of rivers where salt and fresh water mixit is characterized by the types of mammals and fish that live in it
- 50. Multiple ChoiceWHICH IS CORRECT ABOUT PESTICIDES THAT IS SPRAYED ON A LARGE AREA OF LANDIT WILL ACCUMULATE AT THE PRODUCER LEVELIT WILL ACCUMULATE AT THE PRIMARY CONSUMER LEVELIT WILL ACCUMULATE IN THE BODIES OF THE TOP PREDATORSIT IS GREATEST AT THE LEVEL IT IS SPRAYED ON
- 51. Multiple ChoiceWhich kind of dispersion is #1?clumpedrandomuniform
- 52. Multiple ChoiceThe process used by some producers of capturing energy from nonliving sources such as gasses emitted in deep sea vents.ChemosynthesisPhotosynthesisPercolationRespiration
- 53. Multiple ChoiceInvasive species are:non-nativeharmful to an ecosystemorganisms that can lack predators in the new environmentall of the answers are correct
- 54. Multiple ChoiceThe build up of nutrients in a lake is a process called ________________.eutrophicationvolcanic eruptionalgae builduppond death
- 55. Multiple ChoiceWhich letter shows a mature, well-established population in favorable conditions?ABCD
- 56. Multiple ChoiceWhich letter shows the the exponential growth of a population?ABCD
- 57. Multiple ChoiceRefer to the diagram of the survivorship curve.
Which curve best describes an organism that invests a lot of energy in parenting?ABCthis is not a survivorship curve - 58. Multiple ChoiceWhich of the following is a density-independent factor limiting human population growth?faminediseasecompetition for foodnaturally occurring in fires
- 59. Multiple ChoiceAnimals from two different species utilize the same source of nutrition in one area It is most accurate to say that the animalswill learn to get alongwill compete for foodwill die because there will not be enough food for both of themwill learn to eat different foods
- 60. Multiple ChoiceWhich of the following is NOT an abiotic factor?airwaterdecomposerstemperature
- 61. Multiple ChoiceWhich of the following encompasses all the others?ecosystemcommunitypopulationindividual
- 62. Multiple ChoiceWhich of the following represents several species of brightly colored, harmless snakes looking like poisonous coral snakes?commensalismmutualismbatesian mimicrymullerian mimicry
- 63. Multiple ChoiceWhich of the following represents several species of poisonous snakes bearing bright colors of red, black, and yellow?commensalismmutualismbatesian mimicrymullerian mimicry
- 64. Multiple ChoiceWhich of the following represents the monarch and viceroy butterflies both have orange wings with the same distinctive black markings? When the monarch caterpillar feeds on milkweed, a toxic plant, it stores the toxins, making both the monarch caterpillar and butterfly unpalatable and toxic. The viceroy caterpillar feeds on nontoxic plants.commensalismmutualismbatesian mimicrymullerian mimicry
- 65. Multiple ChoiceIn which of the following biomes is light most likely to be a limiting factor?desertestuarycoral reefocean pelagic zone
- 66. Multiple ChoiceBiogeochemical cycles are global for elementsthat are found in the atmospherethat are found mainly in the soil.such as carbon, nitrogen and phosphorus.that are dissolved in water.
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