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Energy through an Ecosystem - Producers (Grade 10)

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Energy through an Ecosystem - Producers

Which statement about energy is TRUE?
  1. Energy is not recycled, but it is converted from one form to another.
  2. Producers eat other organisms to obtain energy.
  3. Consumers make sugar through photosynthesis.
  4. Some types of bacteria can form carbon dioxide that plants and animals need.
What organisms make their own food with sunlight or chemical energy?
  1. producers
  2. consumers
  3. decomposers
  4. scavengers
Which kind of organisms have the greatest amount of potential energy?
  1. consumers
  2. producers
  3. herbivores
  4. carnivores
In the energy pyramid, which group forms the bottom and also has the largest number of organisms?
  1. carnivores
  2. herbivores
  3. producers
  4. consumers
Which organism is an example of a producer? (Select all that apply.)
  1. mountain lion
  2. green alga
  3. mushroom
  4. maple tree
  5. green bacterium
  6. sea anemone
What is another term for producers, or organisms that make their own energy?
  1. heterotrophs
  2. autotrophs
  3. carnivores
  4. decomposers
Organisms that use                                    do not need sunlight to make their own energy. Instead they harness energy from inorganic molecules.
What is the main product made by producers that provides them with their energy?
  1. lipids
  2. proteins
  3. carbohydrates
  4. nucleic acids
Producers are always unicellular organisms and occupy the lowest levels on every food chain.
  1. True
  2. False
Primary productivity is an essential part of an aquatic ecosystem. Organisms such as algae form the basis of every food chain in this type of environment. Explain what primary productivity is and how a disruption to it would impact the largest fish in a lake.

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