Consider a food chain?

Question

Consider a food chain in which a grasshopper eats grass, the grasshopper is eaten by a frog, and the frog is eaten by a snake. Given these relationships, which of the following is not correctly matched?
(a) grass -- autotroph

(b) grasshopper -- herbivore

(c) frog -- secondary consumer

(d) snake -- primary consumer

Answer 1

Only if the frog ate the snake would it be correct.

Answer 2

yep, ^ is right about that one (d is not matched correctly). the grasshopper is a herbivore and therefore is a primary consumer. the frog eats it and is a secondary consumer, the snake being a tertiary consumer