Introduction / Context:
The analogy asks you to recognize a specific member of a biological class and match it with its correct category. The deltoid is a particular muscle. We need another “specific anatomical structure : its class” pairing.
Given Data / Assumptions:
- Base: deltoid → muscle (specific named muscle → class “muscle”).
- Correct option: a specific named structure → correct anatomical class.
- Reject pairs that are part-to-part, instrument-to-action, or mismatched levels.
Concept / Approach:
“Radius : bone” fits because the radius is the lateral forearm bone, a specific example of the class “bone.” Other options mix tissues and organs or confuse tools with outcomes, which breaks the class-membership relationship.
Step-by-Step Solution:
Identify taxonomy: deltoid ∈ muscles.Evaluate “radius : bone” — correct taxonomy: radius ∈ bones.Reject “brain : nerve” — brain is an organ; nerve is a different structure type.Reject “tissue : organ” — wrong order/levels.Reject “blood : vein” — substance vs. vessel; not a member-class relation.Reject “scalpel : incision” — instrument vs. result; not anatomy taxonomy.
Verification / Alternative check:
Both correct pairs name a single, specific anatomical example and its proper class.
Why Other Options Are Wrong:
They cross categories (organ vs. nerve), invert levels (tissue vs. organ), or shift to tool-result relations.
Common Pitfalls:
Choosing any biological words without confirming proper taxonomic containment.
Final Answer:
radius : bone
Discussion & Comments