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Ecosystems

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  • An Ecosystem is a community of _________, animals, and their surroundings.
    plants
  • There are two ways bison help to make the grasslands bigger: name one.
    They eat and trample young trees; They poop as they travel and the grass seeds in the poop get spread all over.
  • What is an omnivore?
    An organism that eats both plants and animals.
  • True or False: Terrestrial ecosystems are water-based.
    False
  • What is the most common forest type in the USA?
    Deciduous
  • Healthy ecosystems are important because they ________________________.
    keep our air and water clean
  • True or False: Soil is made up of organic matter
    True
  • Biodiversity helps ecosystems recover from ____________.
    changes
  • True or False: Everything in an ecosystem is connected through a network of interactions.
    True
  • What do trees provide to animals? (2 things)
    Food and Shelter
  • What are producers?
    An organism, such as a plant or algae, that makes its own food.
  • Why are lizards good for the grassland habitat?
    They eat a lot of insects.
  • A grassland habitat is a large area of land with a lot of _______
    grass
  • Why do ground squirrels dig burrows?
    To hide from predators.
  • Decomposition is the breaking down of ________ matter, to recycle it back into the system.
    organic or living
  • What does the grass in a grassland habitat provide for the animals that live there?
    Food and shelter
  • True or false: Top consumers help keep other animal populations from getting too big.
    True
  • Name one organism (living thing) that helps decomposition in an ecosystem?
    vultures, worms, insects
  • There are two types of ecosystems. Name one of them.
    Terrestrial and Aquatic
  • Grass grows easily in a grassland because there aren't many _______ to block out the _________
    trees; sunlight
  • True or False: Aquatic ecosystems are air-based.
    False
  • True or False: Forests are a VERY important part of our Earth's ecosystems.
    True
  • What three factors impact ecosystems?
    Geography, temperature, precipitation
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