Respuesta :
By analyzing the notes, one can say that in the given scenario, secondary consumer eating primary consumer is missing. The correct option is D.
What are consumers?
A consumer in a food chain is a living being that consumes organisms from another population. A heterotroph is a consumer, and an autotroph is a producer.
As in the notes it is mentioned that ferns are eating beetles, and snakes are eating finch. It is lacking secondary consumers eating primary consumers.
Thus, the correct option is D.
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