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Eighth Grade (Grade 8) Food Chains and Webs Questions

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Grade 8 Food Chains and Webs
What is the difference between a food chain and a food web?
  1. The interlinking energy needed for a food chain is greater than for a food web.
  2. More gas is given off by the microorganisms in a food chain than in a food web.
  3. Food chain refers to one path of energy, whereas a food web refers to multiple paths of energy.
  4. None of the above
Grade 8 Food Chains and Webs
In a deciduous forest, insects, birds, rodents, and deer are
  1. tertiary consumers.
  2. secondary consumers.
  3. primary consumers.
Grade 8 Food Chains and Webs
Which grouping is an example of a possible food chain?
  1. grass --> cow --> human
  2. cow --> grass --> human
  3. ant --> grass --> cow
  4. grass --> human --> cow
Grade 8 Food Chains and Webs
An African lion is a
  1. decomposer.
  2. consumer.
  3. producer.
  4. herbivore.
Grade 8 Food Chains and Webs
Bears are omnivores that eat anything organic.
  1. True
  2. False
Grade 8 Food Chains and Webs
Which type of organism is at the top of an energy pyramid?
  1. decomposer
  2. producer
  3. herbivore
  4. carnivore
Grade 8 Food Chains and Webs
The source of energy that fuels most life on Earth is
  1. oil.
  2. chlorophyll.
  3. the Sun.
  4. DNA.
Grade 8 Food Chains and Webs
Mushrooms and earthworms are                .
  1. producers.
  2. consumers.
  3. decomposers.
  4. parasites.
Grade 8 Food Chains and Webs
Which organisms are the first step in a food chain?
  1. consumers
  2. decomposers
  3. producers
  4. herbivores
Grade 8 Food Chains and Webs
Which description is a characteristic of a heterotroph?
  1. uses energy directly from the Sun
  2. uses chlorophyll to absorb energy
  3. undergoes photosynthesis to create glucose
  4. obtains energy by consuming other organisms
Grade 8 Food Chains and Webs
Which type of organism is found at the bottom of an energy pyramid?
  1. consumer
  2. herbivore
  3. producer
  4. omnivore
Grade 8 Food Chains and Webs
The food chain of desert organisms consists of
  1. cactus, moth, lizard, and bird.
  2. dolphin, fish, and coral.
  3. grass, deer, and bear.
  4. berries, monkey, and leopard.
Grade 8 Food Chains and Webs
Which one is a heterotroph?
  1. plant
  2. flower
  3. producer
  4. consumer
Grade 8 Food Chains and Webs
What is the ultimate energy source for living organisms?
  1. energy stored in chemical bonds
  2. the Sun
  3. energy stored in cells
  4. nuclear power
Grade 8 Food Chains and Webs
What statement about energy pyramids is true? (Select all that apply.)
  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
A meat eater that eats secondary consumers is a
  1. primary consumer.
  2. secondary consumer.
  3. tertiary consumer.
  4. quaternary consumer.
Grade 8 Food Chains and Webs
A lion hunts and kills other organisms to obtain energy. What type of organism is the lion?
  1. unicellular
  2. photosynthetic
  3. autotroph
  4. heterotroph
Grade 8 Food Chains and Webs
Which are NOT considered heterotrophs?
  1. herbivores
  2. carnivores
  3. decomposers
  4. producers
Grade 8 Food Chains and Webs
Mushrooms and earthworms are                .
  1. producers
  2. consumers
  3. decomposers
  4. parasites
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