Study

Water Communities

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  • Beaver dams also make ponds which help:
    keep rivers from getting dirty.
    keep rivers from drying up in dry seasons.
    keep preditors away from the pond.
  • Which saltwater animal can swim strongly against the current?
    whale
    starfish
    fish
    Fish and Whale
  • A place where an animal or plant naturally lives or grows is their __________.
    home
    habitat
    enviroment
  • The smallest saltwater communities are found:
    in saltwater oceans and seas.
    near the surface of the ocean.
  • Beaver dams:
    are harmful to the river community
    are made with rocks and mud
    cause rivers to dry up
    help hold back flood waters
  • Which animal helps keep the riverbank clean by feeding on the remains of dead fish or other animals?
    Crab
    Birds
    Crayfish
    Alligator
  • A small organism that live in water is a __________.
    plankton
    germ
    organism
    bacteria
  • The image shows a:
    saltwater community
    river community
  • Which of the following are found in saltwater communities?
    All of the above
    Plankton
    Squid
    Whales
  • Through history, people have have used rivers for:
    water, fishing, and swimming.
    water and fishing.
    water, food, and tranportation.
  • The largest saltwater community is the one found:
    in saltwater oceans and seas.
    near the surface of the ocean.
  • Which of the following is a true statement?
    Saltwater communities are only found near the surface.
    Saltwater communities are only found deep in the oceans.
    The largest saltwater communities are found in oceans & seas
  • In a communities, each living thing has its purpose and place
    False
    True
  • What are the two water communities?
    Saltwater and River
    Amazon and Nile
    Saltwater and Atlantic Ocean
  • Why do plants not grow in the bottom of the oceans?
    Plants need oxygen and there is none in the ocean floors.
    Plants need warm waters and it is too cold in ocean floors.
    Plants need sun & sunlight doesn't reach the ocean floor.
  • How many groups of living things live in the sea?
    4
    6
    3
    5
  • In a river community, crayfish are:
    predators
    decomposers
    producers
    consumers