Community Interactions Quiz Questions

16 Questions

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Community Quizzes & Trivia

Are you the kind who moves to a new neighborhood and never bothers to know the next-door neighbor? Well this is just for you. Take the quiz to understand how best you can interact with the communities around you.


Questions and Answers
  • 1. 
    What is implied by the reference, "biotic portion of an ecosystem"?
    • A. 

      The portion of the community involved in competition

    • B. 

      Everything within the ecosystem

    • C. 

      The portion involved in coevolution

    • D. 

      The "living" portion of the ecosystem

  • 2. 
    Coevolution is ___________.
    • A. 

      A competition between two species that harms one and benefits the other

    • B. 

      The particular space within an ecosystem occupied by a species

    • C. 

      A process wherein two interacting species act as agents of natural selection on one another

    • D. 

      A mechanism that results in death of one of the competing individuals

    • E. 

      An interaction between two species that benefits both

  • 3. 
    Complete the statement: Different species share many aspects of their niche with others, but __________.
    • A. 

      They do not compete within the niche for the resources it provides

    • B. 

      The niche is not necessarily the home of any of the species

    • C. 

      Intraspecific competition will be detrimental to the species

    • D. 

      No two species ever occupy exactly the same ecological niche within the same community

  • 4. 
    • A. 

      When there is competition between a predator and prey

    • B. 

      Only when available resources are limited

    • C. 

      When they attempt to use the same limited resources, particularly energy, nutrients, or space

    • D. 

      When resources are partitioned

  • 5. 
    What evolutionary adaptation occurs when species with similar ecological niches coexist and compete?
    • A. 

      Loss of physical and behavioral adaptations

    • B. 

      Resource partitioning

    • C. 

      Population size reduction

    • D. 

      Predation

  • 6. 
    Which of the following is an example of resource partitioning?
    • A. 

      Predator and prey relationships

    • B. 

      Related species of finches of the Galapagos Islands

    • C. 

      Both bats and moths with wings

    • D. 

      A moth whose color and shape resemble a bird dropping

    • E. 

      Coevolution

    • F. 

      Coevolution

  • 7. 
    What process has provided the predator, the mountain lion, with tearing teeth and claws and its prey, the fawn, with dappled spots that serve as camouflage?
    • A. 

      Coevolution

    • B. 

      Mimicry

    • C. 

      Intraspecific competition

    • D. 

      The competitive exclusion principle

    • E. 

      Carnivorous food gathering

  • 8. 
    A cheetah hiding inconspicuously in grass watching for grazing antelope is an example of __________.
    • A. 

      An herbivore

    • B. 

      Camouflage

    • C. 

      Mutualism

    • D. 

      Mimicry

    • E. 

      Intraspecific competition

  • 9. 
    Habitat destruction is the leading cause pushing endangered species toward extinction. What is the second leading cause?
    • A. 

      Increasing amounts of carbon dioxide in the atmosphere

    • B. 

      Imported beetles to control purple loosestrife in North America

    • C. 

      Invasive species

    • D. 

      Wildfires

    • E. 

      Pollution of waterways

  • 10. 
    Consider a situation wherein a predator may use mimicry to attract prey. In one example female fireflies use a series of flashes to attract males. Females of one species will mimic the flashing pattern of a different species and when males respond, they kill and eat them. What would be a good name for this type of mimicry?
    • A. 

      Aggressive mimicry

    • B. 

      Warning coloration

    • C. 

      Mullerian mimicry

    • D. 

      Batesian mimicry

    • E. 

      Startle coloration

  • 11. 
    Assume that you are interested in the life cycle of an ant parasite and the mechanism it uses to disperse its eggs. You find that ant larvae are infected when they eat bird droppings containing the parasite's eggs. As the ant matures, the parasite eggs grow in the abdomen of the ant. The abdomen swells with parasite eggs and turns red, causing it to resemble a berry. You find that berries and other fruit are an important part of the diet of local birds. Further study shows that the abdomen becomes red to attract birds and fool them into eating the ants, thinking they are berries. Consequently, birds spread the parasite eggs through their droppings, which infect the larvae of other ants. After considering the reproductive strategy of the parasite, what is the purpose of the bird as an intermediate host in the life cycle of the parasite?
    • A. 

      The bird disperses the parasite to other uninfected ant colonies to assure survival of the parasite.

    • B. 

      The bird serves no purpose in the life cycle of the parasite.

    • C. 

      The bird is considered prey for the parasite.

    • D. 

      The bird serves as a site for metamorphosis of the parasite.

  • 12. 
    The malaria parasite spends part of its life cycle infecting human red blood cells. However, up to 40% of the human population in some parts of Africa is resistant because of a mutation in the hemoglobin gene that prevents infection. This is an example of __________.
    • A. 

      Parasitism

    • B. 

      A parasite exerting selective pressure on evolution of its host

    • C. 

      Mutualism

    • D. 

      Aggressive mimicry

    • E. 

      Resource partitioning

  • 13. 
    Which of the following is a symbiotic mutualistic relationship between two different species?
    • A. 

      Lichen

    • B. 

      Malaria

    • C. 

      Nagana

    • D. 

      A female firefly producing a rhythmic flashing to attract males.

    • E. 

      Octopus and other mollusks

  • 14. 
    Which of the following is true of lichen?
    • A. 

      The fungus provides food for the two mutualistic participants.

    • B. 

      The alga provides the food for the two mutualistic participants.

    • C. 

      It is usually found as a parasite on a tree.

    • D. 

      The fungus provides light-trapping pigments.

  • 15. 
    Which of the following is the definition of keystone species?
    • A. 

      A particular species that plays a major role in determining community structure

    • B. 

      The few hardy plants that initiate succession

    • C. 

      A particular species that interacts with another where both benefit

    • D. 

      The species that is the primary prey of a parasite

  • 16. 
    Overfishing of lobsters off the east coast of Canada has allowed the population of its prey, sea urchins, to expand enormously. This is an example of __________.
    • A. 

      A biome

    • B. 

      A climax community

    • C. 

      Removal of a keystone species

    • D. 

      Succession