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Food Chains vs Food Webs

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  • What is the original source of almost all energy in most ecosystems?
    decomposers
    sunlight
    carbon dioxide
    water
  • ________ break down dead plants and animals to create nutrients in the soil.
    Consumers
    Producers
    Prey
    Decomposers
  • What might happen if you remove all producers from the ecosystem?
    The number of plants would increase.
    The ecosystem would collapse.
    There would be more food for secondary consumers.
  • A producer does not need the Sun to survive.
    False
    True
  • The water cycle ______.
    permanently removes water from the ecosystem.
    uses photosynthesis to make clouds.
    recycles, transports & replenishes the water supply.
  • T or F: Food webs begin with animals, and food chains begin with plants.
    True
    False, ALL food chains & webs begin with producers
  • Which of the following is a carnivore?
    squirrel
    caterpillar
    hawk
  • The following photo shows an example of a _____.
    decomposers
    food chain
    food web
  • Which organism would most likely come after a snake in a food chain?
    hawk
    caterpillar
    blue bird
    mouse
  • What breaks down dead plants and animals?
    decomposer
    consumer
    predator
    prey
  • What type of consumer eats only producers?
    plant
    carnivore
    omnivore
    herbivore
  • Which 3 things MUST be present for photosynthesis to occur?
    sunlight, water, carbon dioxide
    oxygen, sunlight, carbon dioxide
    water, food, rain
  • A food chain ALWAYS begins with _____.
    a producer
    a consumer
    an omnivore
  • A carnivore is an animal that eats only meat.
    True
    False
  • Animals that hunt other animals to eat are ____.
    prey
    predators
    omnivores
    herbivores
  • A vulture is an example of a ____.
    decomposer
    omnivore
    scavenger
  • Which of the following captures sunlight in an ecosystem?
    ferns
    ALL of the above
    apple trees
    plants
  • Which of the following is an example of a decomposer?
    crickets
    water
    bacteria
  • A food chain shows _____.
    the differences in organisms.
    the flow of energy that passes from one organism to another.
    where animals live.
  • Which of the following is a producer?
    Plants
    Skunk
    Caterpillar
  • Carnivores obtain energy by eating ___.
    the food they make.
    animals.
    plants.
  • In the diagram below, which is a decomposer?
    mushroom
    grass
    snake
    bird
  • Which word describes a tree in an ecosystem?
    herbivore
    producer
    decomposer
  • Which of the following is an herbivore?
    snake
    lion
    cheetah
    rabbit
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