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Tenth Grade (Grade 10) Food Chains and Webs Questions

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Grade 10 Food Chains and Webs
The series of steps in which a large fish eats a small fish that has eaten algae is a                   .
  1. food chain
  2. pyramid of numbers
  3. pyramid of biomes
  4. food web
Grade 10 Food Chains and Webs
Most of the energy that fuels ecosystems on Earth comes from                .
  1. chemicals
  2. water
  3. sunlight
  4. bacteria
Grade 10 Food Chains and Webs
What organisms make their own food with sunlight or chemical energy?
  1. producers
  2. consumers
  3. decomposers
  4. scavengers
Grade 10 Food Chains and Webs
Autotrophs are organisms that                     .
  1. eat each other.
  2. decompose for food.
  3. make their own food.
  4. scavenge for food.
Grade 10 Food Chains and Webs
Any organism that must obtain its food from a source outside itself is a(n)
  1. autotroph.
  2. heterotroph.
  3. parasite.
  4. saprophyte.
Grade 10 Food Chains and Webs
All plants and animals depend on energy from the                .
  1. ocean.
  2. biosphere.
  3. Sun.
  4. biome.
Grade 10 Food Chains and Webs
Which graphic best represents the flow of energy in a biome?
  1. food chain
  2. food web
  3. energy pyramid
  4. food circle
Grade 10 Food Chains and Webs
Why are decomposers such an essential part of any food web and ecosystem?
  1. Decomposers recycle nutrients that keep the flow of energy going.
  2. Decomposers provide the base of all energy production in the food web.
  3. Decomposers are responsible for keeping the numbers of herbivores in check.
  4. Decomposers prevent new species from coming into the system.
Grade 10 Food Chains and Webs
Which organism occupies the top consumer position?
Food Web Without Text Labels
  1. mushrooms
  2. hawk
  3. mouse
  4. snake
Grade 10 Food Chains and Webs
Organisms that make their own food are                .
  1. autotrophs
  2. heterotrophs
  3. carnivores
  4. omnivores
Grade 10 Food Chains and Webs
How does energy flow through an ecosystem?
  1. from consumers to producers to the Sun to the atmosphere
  2. from producers to the atmosphere to consumers to the Sun
  3. from the Sun to producers to consumers to the atmosphere
  4. from the Sun to consumers to the atmosphere to producers
Grade 10 Food Chains and Webs
Trophic levels describe                             in a community.
  1. the energy available
  2. succession
  3. predator-prey relationships
  4. competition
Grade 10 Food Chains and Webs
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.
Grade 10 Food Chains and Webs
What happens when a species has no natural predators?
  1. The species dies.
  2. The species moves.
  3. The species' population grows.
  4. The species' population declines.
Grade 10 Food Chains and Webs
The arrows in a food web or chain show
  1. the way the matter flows.
  2. who eats who.
  3. who dies.
  4. the way the energy flows.
Grade 10 Food Chains and Webs
What is another term for those organisms that are considered consumers in an ecosystem?
  1. producers
  2. autotrophs
  3. decomposers
  4. heterotrophs
Grade 10 Food Chains and Webs
What does an animal eat if it is carnivorous?
  1. meat
  2. veggies
  3. dirt
Grade 10 Food Chains and Webs
An example of a producer is a                      .
  1. cow
  2. farmer
  3. grass plant in a lawn
  4. all of the above
Grade 10 Food Chains and Webs
Organisms that make their own food are                .
  1. consumers.
  2. producers.
  3. condensers.
  4. decomposers.
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