Study

Ecosystems

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  • How do organisms in the deepest zone of marine ecosystems survive?
    They feed on the remains of organisms that die and fall from above
  • Evergreen forests that are most characteristic of the Iberian Peninsula.
    Holm oak forests
  • Name THREE factors that influence aquatic ecosystems.
    Salinity (amount of salt), depth, water flow rate (standing or flowing), and light level
  • True or false? Freshwater ecosystems don't receive much light.
    FALSE - they receive a lot of light
  • In which layer of marine ecosystems do most producers and consumers live?
    The coastal zone (top layer)
  • What are THREE things a growing human population needs?
    more... water, crops, food, energy, and resources
  • What are the two types of aquatic ecosystems?
    Marine and freshwater
  • Name THREE places where we can find freshwater ecosystems.
    lake, river, marsh, and estuary
  • Trees can grow up to 40m tall here. Their leaves are shaped like needles to survive the cold temperatures
    Mountain pine forest
  • Name TWO natural causes that disrupt ecological balance.
    Natural disasters, diseases/plagues, and changes to population
  • This ecosystem has deciduous oak trees.
    Oak grove
  • True or false? Marine ecosystems have the widest variety of living things on our planet.
    TRUE!
  • Trees can't grow here because it's too cold. There are grasses, shrubs, and small mammals.
    Scrubland
  • True or false? Plants can live in the middle zone of marine ecosystems
    FALSE - not enough light for photosynthesis (but animals can live here)
  • In the past people grew crops and had livestock here. Now, these are industrial/ residential areas.
    Pastures
  • What are two examples of producers in marine ecosystems?
    Phytoplankton and algae
  • In this ecosystem, humans are the predominant consumers. A lot of waste is produced and removed from this place.
    City
  • This ecosystem is always next to water. It is wooded and humid.
    Riparian forest
  • True or false? An anemone is a producer.
    FALSE - It's a consumer that lives on the sea floor
  • Which of these is NOT a main HUMAN threat to ecosystems? Overfishing, overpopulation, natural disasters, deforestation, or pollution
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