What must be at the beginning of every food chain?
  • A herbivore
  • A green plant
  • A decomposer
  • An omnivore
In a food web, secondary consumers eat the primary consumers, or herbivores. Which one of these is a secondary consumer?
  • Fox
  • Caterpillar
  • Rabbit
  • Cow
Which of these species is a producer?
  • Polar bear
  • Algae
  • Shrimp
  • Cod
Rose → aphid → ladybug. In this food chain, what is the ladybug?
  • The producer
  • A decomposer
  • The secondary consumer
  • The primary consumer
What does a decomposer do in a food web?
  • They provide food for herbivores
  • They recycle nutrients by feeding on dead and decaying materials
  • They convert energy from sunlight into food
  • They create soil
Which consumers eat only plants?
  • Herbivores
  • Omnivores
  • Carnivores
  • Other plants
In a food web, green plants are known as producers. Why is this?
  • Because plants are not carnivores
  • Because plants are the most efficient at transferring energy
  • Because plants create their own food from sunlight
  • Because plants are inefficient at transferring energy
Which of the following support all life on Earth?
  • Insects
  • Mammals
  • Carnivores
  • Green plants
Which of these food chains is in the right order?
  • Shrimp → algae → cod → seal → polar bear
  • Algae → cod → shrimp → seal → polar bear
  • Polar bear → seal → cod → shrimp → algae
  • Algae → shrimp → cod → seal → polar bear
What is an omnivore?
  • An omnivore eats only green plants
  • An omnivore is a top carnivore
  • An omnivore eats both plants and animals
  • An omnivore is a decomposer
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