10 minutes maximum! Can you do it in 5?

Q1-6: In a field, the following food chain is observed:

corn plant → mouse → snake → owl

1. Which organism is a producer?

• A. corn plant
• B. mouse
• C. snake
• D. owl
  

2. What is the source of energy for this producer?

• A. soil
• B. atmosphere
• C. the Sun
• D. animal droppings

3. The owl is a carnivore. This means it...

• A. eats mainly plants
• B. eats mainly other animals
• C. is top of the food chain
• D. hunts at night

• A. vegans
• B. predators
• C. herbivores
• D. omnivores

• A. The transfer of energy up the food chain
• B. Which organism is being consumed
• C. The movement of an organism
• D. The direction in the chain towards the carnivore

6. The field and all the creatures living in it are called ...

• A. a population
• B. an ecosystem
• C. a habitat
• D. a community

7+8: A tree has a large population of insects called aphids feeding on the leaves. The aphids are being consumed by beetles.

7. Which of the diagrams below correctly shows the shape of a pyramid of numbers for this food chain?

• A. The aphids are predators, the tree is prey.
• B. The tree is a predator, the aphids are prey.
• C. The beetles are predators, the aphids are prey.
• D. The aphids are predators, the beetles are prey.

9-10. The diagram shows a food web of organisms found on a rocky shore:

9. If the sea bird population decreased through disease, what is likely to happen to the population of crabs and top shells?

• A. plankton and algae
• B. barnacles and top shells
• C. dog whelks and crabs
• D. sea birds