Question

based on the diagram above, which of the following organisms best represents a secondary consumer?
penguin
plankton
seal

Explanation:

• Plankton: It is a producer as it can perform photosynthesis (in case of phytoplankton) and form the base of the food - chain.
• Penguin: It is a secondary consumer. Krill (a primary consumer as it feeds on plankton) is eaten by penguin.
• Seal: It is a tertiary consumer as it feeds on secondary consumers (e.g., penguin).

Answer:

Penguin