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Food Webs & Chains - اختبار
  • 1. What is a food chain?
A) A pathway that follows food as it grows from a seed to a large plant.
B) A pathway indicating the flow of food energy in an ecosystem.
C) A string of food connected with tiny links of chain
D) A pathway showing what animals are always bigger than the others
  • 2. Why does a food chain begin with plants?
A) Because plants eat dirt for a living
B) Because they are soft and easy for animals to eat
C) Because there is no lower form of life in the food chain.
D) Because they produce food from light energy not from other animals.
  • 3. The last component of the food chain is a:
A) Consumer
B) Decomposer.
C) Heterotroph.
D) Predator.
  • 4. The further along the food chain you go, the less food (or energy) remains available for consumers.
A) True
B) False
  • 5. The different levels in a food chain are called trophic levels.
A) True
B) False
  • 6. What is the driving source that starts the food chain?
A) The sun.
B) Good soil.
C) Fire.
D) Water.
  • 7. How does a plant get input or food from the decomposers?
A) Decomposers break down organic compounds into simple nutrients.
B) They don't, it's all about the sun's energy.
C) The decomposers build complex proteins and amino acids that are eaten by primary consumers.
D) They draw fertilizer from the soil.
  • 8. Which of the following is not a consumer in the food chain?
A) Scavengers.
B) Quaternaries.
C) Autotrophs.
D) Heterotrophs.
  • 9. Why must the second organism in a food chain be a herbivore?
A) The energy needs of decomposers is different.
B) It only eats plants.
C) Not true, they can be carnivores.
D) Cows do not like hamburgers.
  • 10. What animal is a scavenger?
A) Vulture.
B) Eagle.
C) Owl.
D) Hawk.
  • 11. What is a food web?
A) Like a spider web, it's where food is caught by other animals.
B) A map of food chains that are somehow connected.
C) A web of foods that taste good together.
D) A way to connect biomes and weather patterns.
  • 12. Which of the following are decomposers?
A) Mushrooms, algae, and some bacteria
B) Vultures, mice and snakes.
C) Ants, mice and fungi.
D) Hot temperatures and lots of moisture.
  • 13. Which food chain correctly describes the flow of energy in an ecosystem?
A) Grass - Mouse - Algae
B) Grass - Mouse - Cow
C) Grass - Cow - Owl
D) Grass - Cow - Human
  • 14. Rabbits eat grass and other plants to survive. What kind of animal are they?
A) Carnivores.
B) Herbivores.
C) Scavengers.
D) Omnivores.
  • 15. This animal eats both plants and animals.
A) Herbivores.
B) Carnivores.
C) Predators.
D) Omnivores.
  • 16. This animal finds already dead animals to eat.
A) Omnivores.
B) Scavengers.
C) Predators.
D) Autotrophs.
  • 17. This animal eats both herbivores and carnivores.
A) Producers.
B) Carnivores.
C) Herbivores.
D) Omnivores.
  • 18. These organisms break down the remains of dead organisms and their wastes.
A) Omnivores.
B) Carnivores.
C) Decomposers.
D) Producers.
  • 19. Green plants get food by:
A) Using sunlight to make their own food.
B) Absorbing water and CO2 through its root system.
C) Eating insects and other producers.
D) Going dormant during hot weather.
  • 20. All living things get everything that they need to eat from:
A) Their habitat.
B) Producers.
C) Water.
D) Their parents.
  • 21. All of the different kinds of animals that live together in the same place make up a:
A) Ecosystem.
B) Neighbors.
C) Community.
D) Biome.
  • 22. Living things that cannot make their own food are called:
A) Very hungary.
B) Producers.
C) Autotrophs.
D) Heterotrophs
  • 23. A bear that ate a fish that ate bugs that ate algae is a:
A) Tertiary consumer.
B) Primary consumer.
C) Secondary consumer.
D) Primary producer.
  • 24. If a person eats a vegetable, that person is acting as a:
A) Tertiary consumer.
B) Secondary consumer.
C) Primary producer.
D) Primary consumer.
  • 25. If a person eats a steak, from a cow, the person is acting as a:
A) Tertiary consumer.
B) Secondary consumer.
C) Primary consumer.
D) Primary producer.
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