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Eighth Grade (Grade 8) Food Chains and Webs Questions

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Grade 8 Food Chains and Webs
Grade 8 Food Chains and Webs
In a deciduous forest insects, birds, rodents, and deer are known as the
  1. tertiary consumers.
  2. secondary consumers.
  3. primary consumers.
  4. none of the above
Grade 8 Food Chains and Webs
Select the letter of EACH sentence that is true about a food web.
  1. Producers are at the top of the food web.
  2. All first level consumers are carnivores.
  3. Second level consumers may be carnivores or omnivores.
  4. An organism may play more than one role in a food web.
Grade 8 Food Chains and Webs
Choose EACH sentence that is true about an energy pyramid.
  1. The greatest amount of energy is available at the producer level.
  2. At each higher level of the pyramid, there is more energy available.
  3. About half the energy at one level is transferred to the next.
  4. Most food webs have only three or four feeding levels.
Grade 8 Food Chains and Webs
Which of these would be a primary consumer?
  1. A meat-eater that eats primary consumers
  2. A meat-eater that eats tertiary consumers
  3. A meat-eater that eats autotrophs
  4. A meat-eater that eats secondary consumers
Grade 8 Food Chains and Webs
Which best describes the purpose of a food chain?
  1. shows what organisms eat which foods
  2. shows the importance of the sun's energy
  3. predator/prey relationships between organisms
  4. shows transfer of energy between trophic levels
Grade 8 Food Chains and Webs
Grade 8 Food Chains and Webs
Grade 8 Food Chains and Webs
What is the primary purpose of a food web?
  1. diagram of who eats what
  2. diagram of the apex predator in a chain
  3. depict the interconnectedness of organisms
  4. show the movement of energy in ecosystem
Grade 8 Food Chains and Webs
Grade 8 Food Chains and Webs
What is an organism that cannot make its own food?
  1. heterotroph
  2. chemotroph
  3. producer
  4. autotroph
Grade 8 Food Chains and Webs
A secondary consumer would be.
  1. A meat-eater that eats primary consumers
  2. A meat-eater that eats tertiary consumers
  3. A meat-eater that eats autotrophs
  4. A meat-eater that eats secondary consumers
Grade 8 Food Chains and Webs
Grade 8 Food Chains and Webs
Grade 8 Food Chains and Webs
A meat-eater that eats secondary consumers is called a                    .
  1. primary consumer
  2. secondary consumer
  3. tertiary consumer
  4. quaternary consumer
Grade 8 Food Chains and Webs
Which of the following will be at the top of an energy pyramid?
  1. decomposer
  2. producer
  3. herbivore
  4. carnivore
Grade 8 Food Chains and Webs
Grade 8 Food Chains and Webs
Why does a food chain begin with plants?
  1. Because they produce food from light energy, carbon dioxide and water.
  2. Because all the species of the ecosystem depend on them for food.
  3. Because they do not depend on other living creatures for food.
  4. All of the above.
Grade 8 Food Chains and Webs
The food chain of a desert would consist of                          .
  1. cacti, moth, lizard, bird
  2. dolphin, fish, coral
  3. grass, deer, bear
  4. berries, monkey, leopard
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