OBJECTIVES OF ECOLOGYLL COMUNITIES

Multiple Choice Questions MCQs

Four options are given at the end of each statement. You should
encircle one option from them.

  1. All the attributes of lifestyle of an animal is called ecological:

(a) Diversity                   (b) niche         (c) Succession            (d) Sere

  1. The process of change a community in a predictable ways is called:

(a) Diversity                   (b) niche         (c) Succession            (d) Sere

  1. The entire successional sequence is:

(a) Succession              (b) Sere          (c) Diversity                (d) niche

  1. Communities and their physical environment are:

(a) Ecosystem               (b) niche         (c) Diversity                (d) Climax

  1. The consumers that feed on large chunks of dead and decaying
    organic matter are called:

(a) Consumer                (b) Producer (c) Scavengers            (d) Decomposer

  1. Lion is a:

(a) Producer                  (b) Consumer(c) Scavengers           (d) Decomposer

  1. BaCteria is a:

(a) Decomposer            (b) Consumer(c) Scavengers           (d) Producer

  1. The area near the shore of pond is called:

(a) Limnetic                   (b) Littoral       (c) Profundal               (d) Benthic

  1. The open water area of pond is called:

(a) Limnetio                   (b) Littoral       (c) Profundal               (d) Benthic

  1. The shallow zone where land meets water is called:

(a) intertidal                    (b) Neritic       (c) Pelagic                   (d) Benthic

  1. The shallow regions over the continental shelves beyond the intertidal zone is called neritic:

(a) intertidal                    (b) Neritic       (c) Pelagic                   (d) Benthic

  1. The open water at the seafloor is called benthic zone:

(a) Pelagic                     (b) Benthic     (c) intertidal                 (d) Neritic

  1. The area where a freshwater stream or river merges with the ocean is called:

(a) Estuary                     (b) Neritic       (c) Pelagic                   (d) Benthic

  1. The average in the temperature deciduous forests is:

(a) 650— 1000 mm (b) 750— 1500 mm                                 (d) 350 —500 mm

  1. The average rain fall in the grassland ecosystem is:

(a) 250 to 750mm (b) 50 to 250mm                                        (d) 200 to 450mm

  1. The rain fall in desert ecosystem is less than:

(a) 20cm                        (b) 30cm        (6) 40 cm                    (d) 60 cm

  1. The treeless region on the high attitude or latitude is called:(a) Desert                      (b) Forest       (c) Grass land              (d) Tundra. Current population of world is:(a) 5m                            (b) 6.1 m        (c) 7.1 m                     (d) 8.1m

    ns:

    . (b) 2. (c) 3. (b) 4. (a) 5. (c) 6. (b) 7. (a) 8. (b) 9. (a) 10. (a)11. (b)12. (b) 3. (a) 14. (a) 15. (a) 16. (b) 17. (d) 18. (b)

    Fill in the blanks

    1. ____________________ is composed of all populations living in an area.
    2. Species that determine community characteristics are called _________.
    3. All the attributes of lifestyle of an animal is called ecological __________.
    4. All the attributes of lifestyle of an animal is called ecological___________.
    5. The process of change a community in a predictable ways is called___________.
    6. The first community establish in an area is called the______________.
    7. The final community is called_____________ community.
    8. The entire successional sequence is called ____________.
    9. Communities and their physical environment are called ____________
    10. Complexly interconnected food chains are called food____________
    11. The consumers that feed on large chunks of dead and decaying organicmatter are called_______________
    12. The area near shore is called _____________ zone.
    13. The open water area where enough light can penetrate is called____________ zone.
    14. The open water of ocean where light can penetrate is called ____________zone.
    15. The area where a freshwater stream or river merges with the ocean is called an ___________.
    16. The driest ecosystem with less than______________ cm annual rain is called desert.
    17. The treeless region on the high attitude or latitude is called ______________
    18. Any detrimental change in an ecosystem is called______________
    19. The accumulation of matter in food webs is called biological ______________
    20. The variety of living organisms in an ecosystem is called__________Ans:1. Community                        2. dominant                          3. niche

      4. niche                                   5. succession                       6. pioneer

      7. limax                                   8. sere                                   9. ecosystems

      10. webs                                 11. scavengers                     12. littoral

      13. limnetic                            14. photic                              15. estuary

      16. 30                                      17. tundra                             18. pollution


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


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

      19. magnification                  20. biodiversity

      Short Questions

      1. Define community.

      Ans: Community is composed of all populations living in an area.

      1. What is dominant specie of a community?

      Ans: Species that determine community characteristics are called dominant species.

      1. What is community diversity or richness?

      Ans: Communities contain variety of animals. These animals also characterized the community. This variety is called community diversity or richness.

      1. What is ecological niche? Give its attributes.

      Ans: All the attributes of lifestyle of an animal is called ecological, niche. These attributes are: Where it looks for food? What it eats? Where it makes nest? What conditions of temperature and moisture it requires.

      1. Differentiate between pioneer and climax community. Ans: The first community establish in an area is called the pioneer community The final community is called climax community.
      2. Define an ecosystem. Give its examples.

      Ans: Communities and their physical environment are called ecosystems. Their examples are pond ecosystem marine ecosystem etc.

      1. What are food chain and food web?

      Ans: The sequence of organisms through which energy moves in an ecosystem is called food chain. Complexly interconnected food chains are called food webs.

      1. What are scavengers?

      Ans: The consumers that feed on large chunks of dead and decaying organic matter are called scavengers.

      1. Differentiate between limnetic and profundal zone of pond.

      Ans: The open water area where enough light can penetrate is called limnetic zone. The bottom area of a lake, where light cannot penetrate is called profundal zone.

      1. Differentiate between photic and aphotic zones of the ocean?

      Ans: The open water of ocean where light can penetrate is called photic zone The zone below the aphotic zone where light cannot penetrate is called aphotic zone.

      1. What is an estuary?

      Ans: The area where a freshwater stream or river merges with the ocean is

      called an estuary.

      Differentiate between Prairies and Savanna.

      The grass land without woody trees is called prairies. The grassland with

      scattered woody trees is called savanna.

      Differentiate between Arctic tundra and Alpine tundra.

      The tundra present on the high latitude is called arctic tundra. The tundra

      present at high altitude is called alpine tundra.

      What is meant by acid deposition?

      Acid deposition or acid rain: Burning fossil fuels releases sulfur dioxide

      and nitrogen oxides. Sulfur dioxide and water combine to produce sulfuric

      acid. It falls as acid deposition (acid rain). Acid deposition lowers the pH of

      Define biological magnification.

      The accumulation of matter in food webs is called biological magnification.

      True/ False                  (For Punjab University only)

      Marks are True or False statement. Give correct statement if false

      Statements

      1. Species that determine community characteristics are called recessive species.
      2. This variety is called community diversity or richness.
      3. All the attributes of lifestyle of an animal is called ecological control.
      4. The process of change a community in a predictable ways is called succession.
      5. The entire successional sequence is called niche.
      6. Communities and their physical environment are called ecosystems.
      7. The groupings of organisms on the basis of energy are called trophic levels.
      8. The area near shore is called limnetic zone.
      9. The bottom area of a lake, where light cannot penetrate is called profundal
        zone.

      Ans:

    Capture

 

  1. The process of change a community in a predictable ways is called
T
  1. The entire successional sequence is called niche,
F The entire successional sequence is called sere.
  1. Communities and their physical environment are called ecosystems.
T
  1. The groupings of organisms on the basis of energy are called trophic levels.
T
  1. The area near shore is called limnetic zone.
F The area near shore is called littoral zone.
  1. The bottom area of a lake, where light cannot penetrate is called profundal zone.
T

 

Similar Articles:

Leave a Reply

Your email address will not be published. Required fields are marked *