Look at this food chain above. Using the items in the food chain, answer the questions below.

Question

[Lettuce – greenfly – ladybird – thrush- cat]
a What does the arrow mean in a food chain?
b Name the producer in the food chain
c Name the third trophic level in the food chain.
d Name the tertiary consumer in the food chain.
e What is the ultimate source of energy that drives the food chain?

Answer 1

a. The arrow in a food chain represents the flow of energy and nutrients from one organism to another. It shows what is eaten by whom.

b. The producer in the food chain is the lettuce.

c. The third trophic level in the food chain is the ladybird.

d. The tertiary consumer in the food chain is the cat.

e. The ultimate source of energy that drives the food chain is the sun.