Unit 8 Ecology
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  • Question 1
    30 seconds
    Q. The shrew provides energy for the _______?
    answer choices
    cricket
    grasshopper
    frog
    snake
  • Question 2
    30 seconds
    Q. Which of the following is a herbivore?
    answer choices
    cricket
    frog
    hawk
    shrew
  • Question 3
    30 seconds
    Q. Where do all life forms get their energy?
    answer choices
    Earth's Core
    Water
    Plants
    The Sun
  • Question 4
    30 seconds
    Q. What is this called?
    answer choices
    Food Web
    Food Chain
    Abiotic Factors
  • Question 5
    180 seconds
    Q. All of the living and nonliving things in an area that interact with each other are called a/an ______.
    answer choices
    community
    habitat
    population
    ecosystem
  • Question 6
    30 seconds
    Q. An individual belonging to a specific species
    answer choices
    Biotic
    Community
    Organism
    Reptile
  • Question 7
    30 seconds
    Q. The living part of an ecosystem
    answer choices
    Biotic
    Abiotic
    Mother Earth
    Flowers
  • Question 8
    30 seconds
    Q. The non-living part of an ecosystem
    answer choices
    Ocean
    Lava Flow
    Birds
    Abiotic
  • Question 9
    30 seconds
    Q. Organisms that look similar and can produce fertile offspring
    answer choices
    Species
    Fish
    Community
    Trees
  • Question 10
    30 seconds
    Q. Two or more members of a particular species living and interacting in the same area
    answer choices
    Community
    Population
    Organisms
    Biosphere
  • Question 11
    30 seconds
    Q. Different populations living and interacting with each other in the same area
    answer choices
    Biome
    Ecosystem
    Community
    Niche
  • Question 12
    20 seconds
    Q. What may happen if the snowshoe hare was removed from the food web pictured?
    answer choices
    The insects in the habitat would increase.
    The shrew population would decrease due to being only hawk food source.
    The willow tree population would decrease.
    Foxes would dies due to no food source. 
  • Question 13
    30 seconds
    Q. In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
    answer choices
    10%
    20%
    80%
    90%
  • Question 14
    30 seconds
    Q. Nitrogen fixation processes nitrogen from which of the following sources?
    answer choices
    lightning
    fertilizers
    dead plants
    atmosphere
  • Question 15
    120 seconds
    Q. which symbiosis is this 
    answer choices
    parasitism 
    mutualism
    commensalism
    nonalism 
  • Question 16
    60 seconds
    Q. symbiotic relationship in which both organisms benefit
    answer choices
    competition
    Mutualism
    nitrogen fixation
    energy pyramid
  • Question 17
    300 seconds
    Q. 78% of Earth's atmosphere is nitrogen gas. All living things need nitrogen as a part of DNA and RNA. Yet you and I, and other living things, cannot use the nitrogen in our atmosphere directly. One type of organism is responsible for "fixing" nitrogen or helping to put it in a form so other living things can use it. That organism is
    answer choices
    bacteria.
    fungi.
    plants.
    viruses.
  • Question 18
    30 seconds
    Q. How animals get the nitrogen they need
    answer choices
    from the air they breathe
    from the water they drink
    from the food they eat
    from the Sun
  • Question 19
    30 seconds
    Q. How nitrogen is "fixed" into useable form for plants
    answer choices
    only through action of bacteria
    only through lightning
    through action of bacteria & lightning
    through photosynthesis
  • Question 20
    30 seconds
    Q.

    What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

    answer choices

    nitrogen composition

    nitrogen fixation

    ammonia

    denitrification

  • Question 21
    30 seconds
    Q.

    What process occurs when dead plant and animal matter decomposes and nitrogen is released back into the atmosphere?

    answer choices

    Assimilation

    Fixation

    Ammonification

    Denitrification

  • Question 22
    30 seconds
    Q. Based on the graph shown, what is the effect of removing a keystone species from an ecosystem?
    answer choices
    biodiversity goes up
    biodiversity goes down
    biodiversity stays about the same
    not enough information to tell
  • Question 23
    30 seconds
    Q. Based on the graph shown, how can you tell sea otters are a keystone species?
    answer choices
    as the sea otter population decreases, biodiversity increases
    as sea otter population increases, biodiversity increases
    changes in the sea otter population have little effect on biodiversity 
    the sea otter population dereases due to the presence of urchins
  • Question 24
    45 seconds
    Q. When a specific population grows past the ecosystem's carrying capacity, what happens to the population?
    answer choices
    Density Independent limiting factors start to occur resulting in the population going farther above carrying capacity.
    Density Dependent limiting factors start to occur resulting in the population going back below carrying capacity.
    The population will go extinct due to lack of resources
    The population grows then finds a new carrying capacity
  • Question 25
    45 seconds
    Q. The total number of individuals a habitat can survive with the resources it has available.
    answer choices
    Carrying capacity
    Limiting factors
    Resources
    Population
  • Question 26
    60 seconds
    Q. Excessive amounts of rain caused a flood in the southwest United States that resulted in substantial amounts of deaths in the rabbit population? This situation is an example of a density _____________ limiting factor.
    answer choices
    density-independent
    density-dependent
    density- too high
    density- too low
  • Question 27
    30 seconds
    Q.

    A lion and a cheetah attempt to occupy the same niche. The more aggressive lion survives; the cheetah does not.

    answer choices

    Density-Dependent: Competition

    Density-Independent: Competition

    Density-Dependent: Predator-Prey

    Density-Independent: Predator-Prey

  • Question 28
    30 seconds
    Q. Replacement of one type of community by another at a single place over time
    answer choices
    symbiosis
    succession
    competition
    cooperation
  • Question 29
    30 seconds
    Q. First species to arrive in an area
    answer choices
    invasive species
    abiotic components
    pioneer species
    parasites
  • Question 30
    30 seconds
    Q. Stable, final stage of succession
    answer choices
    adaptation
    pioneer species
    niche
    climax community
  • Question 31
    30 seconds
    Q. First species occuring in areas of primary succession are mosses and
    answer choices
    grasses
    wildflowers
    trees
    lichens
  • Question 32
    30 seconds
    Q. Succession type?
    answer choices
    primary succession
    secondary succession
    tertiary succession
    variable succession
  • Question 33
    30 seconds
    Q. Succession type?
    answer choices
    primary succession
    secondary succession
    tertiary succession
    variable succession
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