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Life Boot Camp 5.9C Predict the effects of changes in ecosystems caused by living organisms including humans such as the overpopulation of grazers or the.

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Presentation on theme: "Life Boot Camp 5.9C Predict the effects of changes in ecosystems caused by living organisms including humans such as the overpopulation of grazers or the."— Presentation transcript:

1 Life Boot Camp 5.9C Predict the effects of changes in ecosystems caused by living organisms including humans such as the overpopulation of grazers or the building of highways.

2 STAAR 2013 #36; RC 4; Supporting, F 1. The picture below shows a type of plant called kudzu. Kudzu is a fast- growing Asian vine that was introduced into the United States. Kudzu quickly uses available resources and can completely cover the plants in an area. What effect does the rapid growth of kudzu most likely have on an ecosystem? F. The variety of native plants decreases. G. The water supply in the area increases. H. Weather patterns in the area change. J. The number of other plants increases

3 STAAR 2013 #36; RC 4; Supporting 1. The picture below shows a type of plant called kudzu. Kudzu is a fast- growing Asian vine that was introduced into the United States. Kudzu quickly uses available resources and can completely cover the plants in an area. What effect does the rapid growth of kudzu most likely have on an ecosystem? F. The variety of native plants decreases. G. The water supply in the area increases. H. Weather patterns in the area change. J. The number of other plants increases

4 2. According to the chart, what would most likely happen in an ecosystem if there were a sudden decrease in the number of bacteria and fungi? A The number of plants would increase. B The number of bees would increase. C The amount of nutrients in the soil would decrease. D The amount of water in the air would decrease. TAKS Study Guide, #13

5 2. According to the chart, what would most likely happen in an ecosystem if there were a sudden decrease in the number of bacteria and fungi? A The number of plants would increase. B The number of bees would increase. C The amount of nutrients in the soil would decrease. D The amount of water in the air would decrease. TAKS Study Guide, #13

6 2004—#1 (88%) 3. Clearing a forest to build a shopping mall will most likely result in woodpeckers — A nesting on roofs B losing habitat C laying more eggs D flying slower

7 2004—#1 (88%) 3. Clearing a forest to build a shopping mall will most likely result in woodpeckers — A nesting on roofs B losing habitat C laying more eggs D flying slower

8 2011—STAAR™ Released Test Questions, #10 The picture below shows a frog in a pond containing duckweed. 4. Which of these human activities would most likely cause an overgrowth of duckweed in a pond environment? A Gradually introducing geese into the pond B Fishing in the pond as recreation C Planting trees in nearby forests D Heavily fertilizing nearby farm fields

9 2011—STAAR™ Released Test Questions, #10 The picture below shows a frog in a pond containing duckweed. 4. Which of these human activities would most likely cause an overgrowth of duckweed in a pond environment? A Gradually introducing geese into the pond B Fishing in the pond as recreation C Planting trees in nearby forests D Heavily fertilizing nearby farm fields

10 5. Mountain lions do not live near humans. As the human population increases, the mountain lion— Aloses habitat Bincreases in population Cadapts to city life Dhas more cubs

11 5. Mountain lions do not live near humans. As the human population increases, the mountain lion— Aloses habitat Bincreases in population Cadapts to city life Dhas more cubs

12 6. When trees develop leaves in the spring, changes occur on the forest floor. Why does the development of leaves cause changes on the forest floor? ARainfall increases. BSunlight is reduced. CWind speed increases. DAnimal migration is stopped.

13 6. When trees develop leaves in the spring, changes occur on the forest floor. Why does the development of leaves cause changes on the forest floor? ARainfall increases. BSunlight is reduced. (leaves provide shade) CWind speed increases. DAnimal migration is stopped.

14 7. What is a likely consequence of cutting down rainforests? AA decrease in the amount of air pollution on Earth BAn increase in the number of plants living on Earth CA decrease in the variety of organisms living on Earth DAn increase in the number of arctic ecosystems on Earth

15 7. What is a likely consequence of cutting down rainforests? AA decrease in the amount of air pollution on Earth BAn increase in the number of plants living on Earth CA decrease in the variety of organisms living on Earth DAn increase in the number of arctic ecosystems on Earth

16 8. The diagram below shows an area before and after a housing development was built there. Tall pine trees grow very well in East Texas. However, these trees do not do well in parts of West Texas. Which of the following is MOST important in determining where a plant can grow and survive? AWind BClimate CTides DSunshine

17 8. The diagram below shows an area before and after a housing development was built there. Tall pine trees grow very well in East Texas. However, these trees do not do well in parts of West Texas. Which of the following is MOST important in determining where a plant can grow and survive? AWind BClimate CTides DSunshine

18 9. A science teacher bought some tomatoes that were still green and not yet ripened. He placed half of them in the refrigerator and half on a kitchen table at room temperature. After 4 days, the tomatoes in the refrigerator were still green, while those on the table were red and ripe. Which of the following is the BEST reason for the difference in ripening? ATomatoes need sunlight to ripen. BThere was not enough air in the refrigerator. CThe tomatoes placed in the refrigerator were just bad. DTomatoes do not ripen well at cold temperatures.

19 9. A science teacher bought some tomatoes that were still green and not yet ripened. He placed half of them in the refrigerator and half on a kitchen table at room temperature. After 4 days, the tomatoes in the refrigerator were still green, while those on the table were red and ripe. Which of the following is the BEST reason for the difference in ripening? ATomatoes need sunlight to ripen. BThere was not enough air in the refrigerator. CThe tomatoes placed in the refrigerator were just bad. DTomatoes do not ripen well at cold temperatures.

20 10. If a fire destroyed the grasses on a grassy plain, which animal would most likely be affected first? ACoyotes BAlligators CRabbits DRed-tail hawks

21 10. If a fire destroyed the grasses on a grassy plain, which animal would most likely be affected first? ACoyotes BAlligators CRabbits DRed-tail hawks

22 11. Female seals usually return to the same beaches year after year to give birth. If they are repeatedly disturbed by humans at those beaches, how will the seals most likely respond? AThey will change color. BThey will give birth to more pups. CThey will hunt for food more often. DThey will give birth at different beaches.

23 11. Female seals usually return to the same beaches year after year to give birth. If they are repeatedly disturbed by humans at those beaches, how will the seals most likely respond? AThey will change color. BThey will give birth to more pups. CThey will hunt for food more often. DThey will give birth at different beaches.

24 12. Why would fewer bees come to a plant if the petals of its flowers were removed? AThere would not be any nectar in the flowers. BThe bees would not be attracted to the flowers. CThe bees would not have a spot to land while sipping nectar. DThe bees would not be able to leave their scent on the flowers.

25 12. Why would fewer bees come to a plant if the petals of its flowers were removed? AThere would not be any nectar in the flowers. BThe bees would not be attracted to the flowers. CThe bees would not have a spot to land while sipping nectar. DThe bees would not be able to leave their scent on the flowers.

26 13. Snakes feed on mice. The mice eat grain crops. When the crops are plentiful, what will MOST LIKELY happen? AThe mouse population will decrease. BThe snake population will increase. CThe snake population will decrease. DThe mouse population will not change.

27 13. Snakes feed on mice. The mice eat grain crops. When the crops are plentiful, what will MOST LIKELY happen? AThe mouse population will decrease. BThe snake population will increase. CThe snake population will decrease. DThe mouse population will not change.

28 15. A wetland was drained to build a mall. Two years later, there were no more toads in that area. Why did the toads disappear? AThe toads were destroyed by the construction equipment. BThe toads died because toads cannot breathe out of water. CThe toads were frightened and went into the woods. DThe toads got their food from the wetland ecosystem.

29 15. A wetland was drained to build a mall. Two years later, there were no more toads in that area. Why did the toads disappear? AThe toads were destroyed by the construction equipment. BThe toads died because toads cannot breathe out of water. CThe toads were frightened and went into the woods. DThe toads got their food from the wetland ecosystem.

30 16. Which of these might cause a forest habitat to become a desert? ANo rain BFlooded rivers CHigh winds DHot summers

31 16. Which of these might cause a forest habitat to become a desert? ANo rain BFlooded rivers CHigh winds DHot summers

32 17. In one study, scientists found that the number of raccoons increased where people built homes in the raccoons’ habitats. Which of the following is the MOST LIKELY reason why the number of raccoons increased? ARaccoons no longer lived in wild areas. BRaccoons found more food living near humans. CMore predators of raccoons live near people’s homes. DPeople destroyed raccoon habitats when they built homes.

33 17. In one study, scientists found that the number of raccoons increased where people built homes in the raccoons’ habitats. Which of the following is the MOST LIKELY reason why the number of raccoons increased? ARaccoons no longer lived in wild areas. BRaccoons found more food living near humans. CMore predators of raccoons live near people’s homes. DPeople destroyed raccoon habitats when they built homes.

34 18. If disease removed a species of plant from a food web, how would that ecosystem MOST LIKELY be affected? AAll of the plants in the ecosystem would become extinct. BThe organisms that eat the plant would become extinct. CConsumers of the plant would have a smaller food source. DProducers in the ecosystem would have a smaller energy supply.

35 18. If disease removed a species of plant from a food web, how would that ecosystem MOST LIKELY be affected? AAll of the plants in the ecosystem would become extinct. BThe organisms that eat the plant would become extinct. CConsumers of the plant would have a smaller food source. DProducers in the ecosystem would have a smaller energy supply.

36 19. A gardener watered each of these pots with equal amounts of water. Only one pot was given fertilizer that increases the number of flowers on each plant. Which plant was PROBABLY given the fertilizer? AW BX CY DZ

37 19. A gardener watered each of these pots with equal amounts of water. Only one pot was given fertilizer that increases the number of flowers on each plant. Which plant was PROBABLY given the fertilizer? AW BX CY DZ

38 20. What might happen if the habitat of white- tailed deer decreases in size? AWhite-tailed deer will have more food. BThe number of white-tailed deer the habitat can support will decrease. CThe number of white-tailed deer will increase. DWeaker white-tailed deer will survive longer.

39 20. What might happen if the habitat of white- tailed deer decreases in size? AWhite-tailed deer will have more food. BThe number of white-tailed deer the habitat can support will decrease. CThe number of white-tailed deer will increase. DWeaker white-tailed deer will survive longer.

40 21. A certain type of wildflower grew in a sunny meadow. Over several years, nearby trees formed a shade canopy over the entire meadow. Many years later, the wildflowers no longer grew in the meadow. Which factor directly led to the extinction of this population of wildflowers? AThe building of large cities BPollution from nearby homes COverpopulation of plant-eating organisms DA change in the wildflower’s habitat

41 21. A certain type of wildflower grew in a sunny meadow. Over several years, nearby trees formed a shade canopy over the entire meadow. Many years later, the wildflowers no longer grew in the meadow. Which factor directly led to the extinction of this population of wildflowers? AThe building of large cities BPollution from nearby homes COverpopulation of plant-eating organisms DA change in the wildflower’s habitat

42 22. Bison are grazing animals. They travel across a prairie, eating grass. If there were too many bison in an area, there would probably be— Afewer predators of bison Bmany other large grazing animals Ctall shrubs and many trees Dless grass and more bare soil

43 22. Bison are grazing animals. They travel across a prairie, eating grass. If there were too many bison in an area, there would probably be— Afewer predators of bison Bmany other large grazing animals Ctall shrubs and many trees Dless grass and more bare soil

44 23. A woodland is cut down so a shopping center and many new houses can be built over the next two years. What will MOST LIKELY occur in the local ecosystem in the next five years? AWildlife will compete less for food. BMore species of birds will live there. CWater levels will be lower when it rains. DRain will wash more pollution into creeks.

45 23. A woodland is cut down so a shopping center and many new houses can be built over the next two years. What will MOST LIKELY occur in the local ecosystem in the next five years? AWildlife will compete less for food. BMore species of birds will live there. CWater levels will be lower when it rains. DRain will wash more pollution into creeks.

46 24. Highways allow people to travel between towns and cities. These highways also divide ecosystems into smaller pieces. Animals can become separated from lakes they use for breeding. For example, tiger salamanders travel long distances to breed at certain lakes. How could highway systems affect animals such as the tiger salamander? ATiger salamander habitats may be exposed to less pollution. BTiger salamanders may be cut off from important resources. CTiger salamanders could improve their ability to remember roads. DTiger salamander habitats within ecosystems could become larger.

47 24. Highways allow people to travel between towns and cities. These highways also divide ecosystems into smaller pieces. Animals can become separated from lakes they use for breeding. For example, tiger salamanders travel long distances to breed at certain lakes. How could highway systems affect animals such as the tiger salamander? ATiger salamander habitats may be exposed to less pollution. BTiger salamanders may be cut off from important resources. CTiger salamanders could improve their ability to remember roads. DTiger salamander habitats within ecosystems could become larger.

48 25. The Great Barrier Reef has a number of endangered species which live only in that ecosystem. What would MOST LIKELY happen if pollution killed most of the coral that made up the reef? AThe endangered species might become extinct. BThe animals on the reef would find a new habitat. CThe population size of the endangered species would increase. DThe endangered species would take the niche of the dead coral.

49 25. The Great Barrier Reef has a number of endangered species which live only in that ecosystem. What would MOST LIKELY happen if pollution killed most of the coral that made up the reef? AThe endangered species might become extinct. BThe animals on the reef would find a new habitat. CThe population size of the endangered species would increase. DThe endangered species would take the niche of the dead coral.

50 26. A species of giant pandas lives only in central China. Bamboo, a tall, green tropical plant, is the main food source for these animals. Large areas of bamboo are being cut down in central China to make room for growing other crops. What will MOST LIKELY happen to these giant pandas? AThey will become endangered or extinct. BThey will migrate to warmer areas of China. CThey will become carnivores. DThey will begin to live in caves.

51 26. A species of giant pandas lives only in central China. Bamboo, a tall, green tropical plant, is the main food source for these animals. Large areas of bamboo are being cut down in central China to make room for growing other crops. What will MOST LIKELY happen to these giant pandas? AThey will become endangered or extinct. BThey will migrate to warmer areas of China. CThey will become carnivores. DThey will begin to live in caves.

52 27. The marsh willow herb is a plant that naturally grows in the northeastern part of the United States. It grows best in damp habitats. Which of the following environmental changes would MOST LIKELY cause a decrease in the marsh willow herb population in an area? AA rainstorm lasting several weeks BA drought lasting more than a year CUnusually low temperatures during the month of July DUnusually high temperatures during the month of January

53 27. The marsh willow herb is a plant that naturally grows in the northeastern part of the United States. It grows best in damp habitats. Which of the following environmental changes would MOST LIKELY cause a decrease in the marsh willow herb population in an area? AA rainstorm lasting several weeks BA drought lasting more than a year CUnusually low temperatures during the month of July DUnusually high temperatures during the month of January

54 28. Teresa and Rafael each set up a terrarium for a class project. Teresa never had to add water to her terrarium, but Rafael had to water his every other day. Why do you think this happened? ATeresa poured more water in hers before closing it up. BRafael used different plants in his terrarium. CRafael left the top off and the water inside evaporated quickly. DTeresa used more plant food than Rafael did.

55 28. Teresa and Rafael each set up a terrarium for a class project. Teresa never had to add water to her terrarium, but Rafael had to water his every other day. Why do you think this happened? ATeresa poured more water in hers before closing it up. BRafael used different plants in his terrarium. CRafael left the top off and the water inside evaporated quickly. DTeresa used more plant food than Rafael did.

56 29. How does too much fishing in an area affect its ecosystem? AThe fish will lay many more eggs to replace the fish that were caught. BOrganisms that eat the fish could become endangered due to starvation. COrganisms that eat the fish will have to start eating plants. DPeople could eat too many fish and become ill.

57 29. How does too much fishing in an area affect its ecosystem? AThe fish will lay many more eggs to replace the fish that were caught. BOrganisms that eat the fish could become endangered due to starvation. COrganisms that eat the fish will have to start eating plants. DPeople could eat too many fish and become ill.

58 30. Which of the following would have the greatest effect on an ecosystem because of the changes made to the environment? ABees building a hive in a hollow tree BWasps building a nest in a leafy bush CBeavers building a dam across a stream DFish digging a burrow on a river bottom

59 30. Which of the following would have the greatest effect on an ecosystem because of the changes made to the environment? ABees building a hive in a hollow tree BWasps building a nest in a leafy bush CBeavers building a dam across a stream (could slow down the water too much for other aquatic organisms) DFish digging a burrow on a river bottom

60 31. Which of the following is an example of how living organisms change their physical environment to meet their needs? ABefore building their lodge, beavers build a dam across a stream. B A bird eats seeds from a backyard bird feeder. C A raccoon washes a piece of fruit in a lake before eating the fruit. D A young kangaroo climbs into its mother’s pouch for warmth.

61 31. Which of the following is an example of how living organisms change their physical environment to meet their needs? ABefore building their lodge, beavers build a dam across a stream. B A bird eats seeds from a backyard bird feeder. C A raccoon washes a piece of fruit in a lake before eating the fruit. D A young kangaroo climbs into its mother’s pouch for warmth.

62 32. Which of the following is not an example of a way organisms change their environment to meet their needs? A A wasp builds a nest made of mud. B A human builds a house. C A prairie dog digs a tunnel into the ground. D A bird rests on the limb of a tree.

63 32. Which of the following is not an example of a way organisms change their environment to meet their needs? A A wasp builds a nest made of mud. B A human builds a house. C A prairie dog digs a tunnel into the ground. D A bird rests on the limb of a tree.

64 33. Water lilies growing on ponds and lakes can do great damage to these bodies of water. How do the water lilies affect a pond environment in a dangerous way? AThe fish will not grow and reproduce. BWater lilies pollute the pond water. CWater lilies prevent sunlight from reaching organisms below the water’s surface. DWater lilies attract many unwanted pests, such as snakes and turtles to the pond.

65 33. Water lilies growing on ponds and lakes can do great damage to these bodies of water. How do the water lilies affect a pond environment in a dangerous way? AThe fish will not grow and reproduce. BWater lilies pollute the pond water. CWater lilies prevent sunlight from reaching organisms below the water’s surface. DWater lilies attract many unwanted pests, such as snakes and turtles to the pond.

66 34. Tropical rainforests are cut down and burned at a very high rate in many parts of the world. An area the size of a football field is destroyed every second of every day. The burning wood and vegetation release large amounts of carbon dioxide. Fewer plants remain to take in carbon dioxide. How does this burning affect the carbon cycle in tropical rain forests? AMore carbon dioxide is released into the atmosphere. BMore carbon dioxide is stored in animals. CMore carbon dioxide is released into the soil. DMore carbon dioxide is stored in plants.

67 34. Tropical rainforests are cut down and burned at a very high rate in many parts of the world. An area the size of a football field is destroyed every second of every day. The burning wood and vegetation release large amounts of carbon dioxide. Fewer plants remain to take in carbon dioxide. How does this burning affect the carbon cycle in tropical rain forests? AMore carbon dioxide is released into the atmosphere. BMore carbon dioxide is stored in animals. CMore carbon dioxide is released into the soil. DMore carbon dioxide is stored in plants.

68 M.S. ?’s 35. All of the following are ways humans can adversely change the ecosystem EXCEPT— A. waste dumping B. using biodegradable products C. overhunting animals D. industrial pollution

69 M.S. ?’s 35. All of the following are ways humans can adversely change the ecosystem EXCEPT— A. waste dumping B. using biodegradable products C. overhunting animals D. industrial pollution

70 36. What effect would building a highway have on an ecosystem? A. Increase in butterfly migration B. Decrease in destruction of habitat C. Increase in carbon dioxide D. Increase in oxygen

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72 37. Overpopulation animals cause severe damage to an ecosystem and the surrounding landscape. Additionally, overpopulation can affect the food chain, water routes, and land. Based on the information provided, which of the following is the best conclusion about the effects of overpopulation? A. Overpopulation is destroying the entire U.S. B. Overpopulation does not impact the food chain C. Overpopulation can change the entire structure of the ecosystem D. Overpopulation causes serious issues with the water cycle

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74 38. Hunting is an environmental management tool that helps control wildlife populations. Hunting is an example of— A. the deer population creating change in an ecosystem B. the food chain creating change in an ecosystem C. humans creating change in an ecosystem D. a cycle creating change in an ecosystem

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76 39. Which of the following is a positive effect of building highways in an ecosystem? A. Enhancing access between existing communities B. Destruction of existing homes and businesses C. Prohibiting some species from migrating D. Increase in noise and air pollution

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78 40. Which activity by people puts the greatest number of animals at risk for becoming endangered? A. starting forest fires B. destruction of habitat C. hunting and fishing D. making pets of wild animals

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80 41. What is an effect of cutting down forests for the development of land and cities? A. increase in amount of oxygen B. decrease in energy provided for producers C. lack of habitat areas for plants and animals D. gain of habitat areas for new species of animals and plants

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82 42. The Texas Blind Salamander lives in the underwater caves of the Edwards Aquifer, which is used to proved drinking water for many Texans. The Texas Blind Salamander has been on the endangered list since Which could NOT be a possible cause for the salamanders being on the endangered list? A. motor oil draining into the sewer B. using lots of water for irrigation C. lower average rainfall totals D. swimming and fishing activities

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84 43. Biologists observe and record the deer population. They notice that the population is 4 times larger than the habitat can support. Which is LEAST likely to occur from the overpopulation of deer? A. The grass population in the deer’s habitat will begin to decrease. B. The deer population will be stronger and healthier. C. The area’s water source will be reduced or depleted. D. The deer will spread disease to other animals and humans.

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86 44. Based on the information given in the table, why do overpopulated animals wander? A. Their natural ecosystem can no longer support them. B. They migrate to compete with other species for garbage. C. Their natural ecosystem has a vast supply of food and water. D. They migrate to areas where there are fewer producers. Effects of Overpopulation of Grazers 1. Wander into areas populated by humans. 2. Wander onto roads and highways and get killed. 3. Rummage through garbage and kill farm animas.

87 44. Based on the information given in the table, why do overpopulated animals wander? A. Their natural ecosystem can no longer support them. B. They migrate to compete with other species for garbage. C. Their natural ecosystem has a vast supply of food and water. D. They migrate to areas where there are fewer producers. Effects of Overpopulation of Grazers 1. Wander into areas populated by humans. 2. Wander onto roads and highways and get killed. 3. Rummage through garbage and kill farm animas.

88 45. Student are given an assignment to research and document the negative and positive effects of changes in ecosystems caused by humans. Which of the following tools would be most appropriate to use for this assignment? A. notebook B. calculator C. hand lens D. aquarium

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90 46. A group of students is exploring the causes of change in the physical structure of a forest ecosystem. Each student in the group makes a prediction of how changes will impact the ecosystem. The students have each— A. made a table B. formed a hypothesis C. developed a model D. planned an experiment

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92 47. In order to reduce the negative impact on the ecosystem, it is important that people — A. make informed choices in conservation B. demonstrate safety practices C. record data using technology D. neglect wildlife regulations

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94 48. In class, students learned that conserving water reduces the human impact on area watershed. Students want to investigate whether 4 th or 5 th graders use the most water when washing their hands. Which part of the investigation should be recorded? A. height of the students B. time the faucet is turned on C. size of the sink D. grade level of the students

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96 49. Students are doing outdoor experiment in a marshy area. They are collecting water samples for viewing under the microscope to determine if pollution has impacted the health of the pond. The water is oily and shiny, and students are not sure what is in the water. All are good precautions to use while gathering the water samples EXCEPT— A. wearing rubber gloves B. running around the pond C. keeping long hair tied back D. staying with the group

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