What is a major food source for other organisms, including humans?\nOptions:\n- (A) gastropod shells\n- (B) orchids\n- (C) invertebrates\n- (D) swamp vegetation\n- (E) Most plants\n- (F) insects\n- (G) barnacles\n- (H) animals OK. Let's think hard:
User
Mollusks are a major food source for other organisms, including humans. Mollusks are invertebrates and are no exception. Invertebrates are a major food source for other organisms, including humans.
So, the final answer is (C).
Assistant