Chapter 5-6 Test Name________________



Chapter 5-6 Test Name________________

Directions: Choose the best answer.

__b___1. All the following are characteristics of linear population growth except_______.

a. limiting factors involved

b. curve type graph

c. smaller increase in population

d. line graph

___b__2. The effect of animal populations during habitat destruction by humans is usually______.

a. density-dependent limiting factor

b. density-independent limiting factor

c. not observable

d. stabilizing

____a_3. The sequence of communities forming in an originally lifeless habitat is called ______.

a. primary succession

b. secondary succession

c. convergent evolution

d. coevolution

____b_4. A parking lot has been abandoned for some years now. Grass and weeds are growing through the cracks in the cement. This would be an example of _____.

a. primary succession

b. secondary succession

c. convergent evolution

d. coevolution

____d_5. The first type of community that begins growing during primary succession is called_____.

a. climax community

b. beginning community

c. aquatic community

d. pioneer community

___d__6. Lichen would be considered to belong to which community in primary succession.

a. climax community

b. beginning community

c. aquatic community

d. pioneer community

___c__7. The lichen is a combination of what two types of organisms?

a. algae and moss

b. moss and fungus

c. fungus and algae

d. moss and lichens

____b_8. The relationship mentioned above would be considered what type of symbiotic relationship?

a. parasitism

b. mutualism

c. commensalisms

___b__9. Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first. Next the honey guide birds eat. What type of symbiotic relationship is described above?

a. parasitism

b. mutualism

c. commensalisms

__b___10. An increase in herbivore populations in the ecosystem would soon lead to _____.

a. more vegetation

b. more predators

c. ecosystem balance

d. all the above

___c__11. An organism that feeds on the tissue or body fluids of other organisms is called a(n) _____,

a. predator

b. prey

c. parasite

d. barnacle

____c_12. A predator promotes great niche diversity by _______.

a. causing a certain prey to become extinct

b. controlling the population of other predators

c. controlling the population of prey

d. causing competition with other predators

____c_13. Through aquatic succession a lake or pond may become a(n) _____.

a. barren rock

b. ocean

c. meadow

d. aquifer

____b_14. Oak and chestnut trees would be considered what type of community in primary succession?

a. pioneer

b. climax

c. beginning

d. middle

____b_15. A forest fire destroys the trees in a certain forest. The grasses and shrubs are lost also. This area would then experience ________.

a. primary succession

b. secondary succession

____c_16. In the endangered species act process, the second step is the designating critical habitat process. Critical habitat is based on the following except________.

a. Breeding area

b. Food Supply

c. The number of symbiotic relationships

d. Water supply

____b_17. The barnacle and whale represents commensalisms. This is a relationship where __________.

a. one organism is harmed and other benefits

b. one organism benefits and the other is neither harmed or benefits

c. both benefits

d. neither benefits

____c_18. The reason that linear growth of a population has a rate growth or can be seen on a line graph is because of _______.

a. no limiting factors

b. multiple growth from previous generations

c. limiting factors

d. all of the above

____c_19. The number of species that can be supported by an ecosystem is called the ______ of a population.

a. adaptation

b. exponential growth

c. carrying capacity

d. linear growth

___c_20. The major item that is not destroyed in ecosystem that would promote secondary succession would be ________.

a. trees

b. shrubs

c. soil

d. lichen

___c__21. Lichen is a valuable tool in primary succession because it ____________.

a. creates eutrophication

b. is the climax community

c. breaks rocks down into soil

d. has a symbiotic relationship

____b_22. Pennsylvania practices deer management because of all of the following except __________________.

a. Prevent the destruction to forests

b. To get more female deer

c. Save habitats for other animals

d. Balance deer numbers with the ecosystem

___c__23. All are characteristics of a niche except _________.

a. role of organisms

b. organisms habitat

c. amount of symbiotic relationships

d. abiotic and biotic factors

____c_24. In exponential growth, the population grows according to a multiple of the previous generation. This will continue until it reaches__________.

a. extinction

b. linear growth

c. carrying capacity

d. niche diversity

____d_25. The wolves that were reintroduced into Yellowstone in 1995 were from _____.

a. New Mexico

b. Idaho

c. Walmart

d. Canada

The graph below shows a predator-prey relationship. Use the graph to answer the following question.

26. What is happening to the predator population between points c and d on the graph?

A. Increasing

B. Decreasing

C. Remains the same

 27. What is causing this to happen?

A. More prey population

B. Less prey population

C. More habitat 

28. What is happening to the predator population at point E and the end of the graph?

A. Increasing

B. Decreasing

C. Remains the same

29. What is happening to the prey population between A and B?

A. Increasing

B. Decreasing

C. Remains the same

30. Why is this happening?

A. Increase in predators

B. Decrease in predators

C. Predators remain the same

31. Ecological succession can occur as a pond fills up with silt and fallen leaves. Place the following numbered pictures in the correct order to show the succession from pond to marsh then to dry land and finally to climax community.

|[pic] |[pic] |[pic] |[pic] |[pic] |[pic] |

|A |B |C |D |E |F |

A. A,B,C,D,E, F

B. B, C,D,E,A,F

C. F,A,C,B,E,D

D. C,A,D,F,B,E

Use the graphs below to answer question 32

|[pic] |[pic] |

|  |  |

32. On the graph on the right, what does line 1 represent?

A. Symbiotic relationship

B. Carrying Capacity

C. Death rate

D. Birth rate

Each of the statements below refers to exponential population growth, linear population growth or both. Use the following key below to fill in the blank

A. Linear Growth

B. Exponential Growth

C. Both

33. ___a_____ A lack of food prevents a certain population from growing any further.

34. ___c_____ In the steady state, the average growth rate is zero.

35. ____c____ The larger the population gets, the faster it grows.

36. ____c____ One pair of elephants could produce 19 million offspring in less than 750 years.

37. ____a____ A particular environment is limited to a certain number of rabbits that it can support.

38. ___b_____ All of the offspring of a given population survive and reproduce.

Each of the following situations describes a form of symbiosis. After each situation, write the type of symbiosis that is being described.

A. Parasitism

B. Commensalism

C. Mutualism

39. Situation 1: A flowering plant cannot pollinate another plant unless pollen is transported between the plants. While gathering nectar from the plant's flowers, a bee is lightly dusted with pollen. The bee then transports the pollen as it moves from one flower to another. This enables the flowering plant to reproduce.

 c

40. Situation 2: A liver fluke enters the human digestive system on a piece of beef. The fluke derives nourishment from the human; the human is seriously weakened by the presence of the fluke.

a

41. Situation 3: Tall trees provide birds with a place to nest that offers them protection against many kinds of predators.

b

Each of the statements below describes a situation that affects population growth. Some of the statements describe density-dependent factors, and others describe density-independent factors. In the blanks before use the following answers to fill in the blanks.

A. Density Dependent (D)

B. Density-Independent (I)

42. _____b___ A severe frost wipes out 50% of the citrus crop in southern Florida.

43. _____a___ Since snakes prey of frogs, an increase in the frog population causes an increase in the snake population.

44. ______a__ Due to severe overcrowding in an underdeveloped country's village many children do not survive to reach adulthood.

45. _______b_ The eruption of Mt. St. Helens destroys most of the wildlife in the immediate vicinity of the volcano.

46. ____a____ Because rabbits in Australia have no natural enemies, their population increases exponentially.

Use the diagram below to answer the questions 47 to 50.

[pic]

Scenario: The population size for the population below applies to the year 2017. Suppose the birth rate was measured at 5 per 10 individuals per year, while the death rate was measured at 3 per 10 individuals per year. Immigration was measured at 16 per year while emigration was measured at 16 per year.

__b___47. Using the census method what is the total population above.

a. 123

b. 42

c. 89

d. 34

___b__48. What type of population distribution is featured above?

A. Clumped

B. Random

C. Uniformed

____d_49. What is the estimated population for 2018 using the population data above?

A. 78

B. 90

C. 23

D. 50

___c__50. In the current year of 2017, if the dimensions of the square above are 30 meters by 30 meters, what is the population density for the 2017 population?

A. 12 individuals per m2

B. 0.345 individuals per m2

C. 0.05 individuals per m2

D. 0.225 individuals per m2

The pictures in the accompanying illustration show five stages in the development of an ecological community. These stages are not in order.

|[pic] |[pic] |[pic] |

|A. Grass and shrubs |B. Pine Forest |C. Oak and Chestnut |

|  [pic] |  [pic] |  |

| D. Barren Rock | E. Soil and rock |  |

51. Which picture (A, B, C, D, or E) shows the first stage of succession? ____d___

52. The second stage of succession? ___e_____

53. The third stage of succession? _____a____

54. The final stage of succession? ______c__

[pic]

55. What type of succession is shown in the pictures above (primary or secondary)?

A. Primary

B. Secondary

Counting Populations

A student in Environmental class needed to count the total population of grasshoppers in a field. The student went out on the first day and collected 50 grasshoppers. This student marked and released the grasshoppers. The next day the student went out in the same field and collected 30 grasshoppers. The student noticed that 15 were marked.

__d___56. The formula that you would use to solve this problem would be_________.

a. P/p=m/M

b. P/p=M/m

c. P/M=p/p

d. P/M=p/m

__c__57. In the example above 50 grasshoppers represents what variable in the equation.

a. ( P)

b. (p)

c. (M)

d. (m)

___b__58. The method for counting population described above is called __________.

a. Random Sampling

b. Lincoln Index

c. Census

__b 59. True or False. This method is the fastest and most accurate way for counting a population

a. true

a. false

____b_60. After reading the scenario above, what is the total grasshopper population?

a. 56 grasshoppers

b. 100 grasshoppers

c. 115 grasshoppers

d. 225 grasshoppers

_c____61. A forester wanted to figure out the total amount of red oaks that were on a 10 mile by 10 mile property. The grid will contain a 1 mile by 1 mile boxes. He used random sampling to find the answer. He randomly counted the trees in 5 grid boxes. The following was found.

a. 10 oaks, 12 oaks, 10 oaks, 15 oaks, and 23 oaks

A. 1450

B. 1253

C. 1400

D. 1236

__c___62. What is the volume of the object below?

[pic]

A. 125 cm3

B. 220 cm3

C. 800 cm3

D. 568 cm3

-----------------------

D

C

E

B

A

D

C

E

B

A

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