Difficulty: Medium
Correct Answer: Hydra : Tentacles
Explanation:
Introduction / Context:Biology classification can invert the usual pattern by asking for the only correct mapping among several incorrect ones. Here, three organism→structure pairs are wrong, while one is right. The task is to find the correctly matched pair.
Given Data / Assumptions:
Concept / Approach:Validate the existence/appropriateness of the named structure for the given organism. Select the sole accurate pair even if another pair contains a misspelling (antennae) because Hydra : Tentacles is unambiguously correct without caveats.
Step-by-Step Solution:
Check Hydra: tentacles → correct.Check Plasmodium: cilia → incorrect.Check Lizard: flagella → incorrect.Check Cockroach: “Anternae” → intended “antennae,” but as written it is incorrect; even conceptually, it is a sensory organ, not mismatched, yet the item seeks the only fully correct mapping.Verification / Alternative check:Cross-reference basic zoology: Hydra is a cnidarian with tentacles bearing nematocysts; this is standard textbook knowledge.
Why Other Options Are Wrong:
Plasmodium–cilia and lizard–flagella are category errors.Cockroach–“Anternae” contains a spelling error; this set targets the single cleanly correct mapping.Common Pitfalls:Overlooking that the question asks for the correctly matched pair among several incorrect/malformed ones.
Final Answer:Hydra : Tentacles
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