This question-specific review guide is tied to the answer reasoning for a PracticeTestVault item. Use it after you answer the question so the review stays focused on what the prompt actually tested.
What this question is testing
Objective: Understand evidence for evolution
Prompt focus: Structures such as the forelimbs of humans, whales, and bats that share a common underlying skeletal pattern despite different functions are called:
Why the correct answer works
Homologous structures
Correct. Structures with shared ancestry and anatomy but different functions are homologous.
Why the tempting wrong answer fails
The tempting wrong answer usually loses because it skips the key condition, priority, or evidence in the prompt.
Plain-language takeaway
Homologous structures share a common evolutionary origin and underlying anatomy even when they serve different functions. They provide evidence of descent from a common ancestor.
Simple analogy
Think of understand evidence for evolution like following a short checklist: identify the clue, confirm the rule, and then make the move that fits this exact scenario.
How to review it before a retake
- Underline the command word and name what the question is asking before rereading the choices.
- Compare the correct answer against the closest distractor and write the exact detail that separates them.
- Retest this objective with a fresh question without looking at the rationale first.