Question Detail
Question
Molecular evidence has revealed a surprisingly close evolutionary relationship between chordates and which other group?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Genetic tools have shown that echinoderms and chordates share a closer relationship than morphological comparisons alone might suggest. Distractors like arthropods are also complex but genetically further removed.
Hint
Focus on the specific molecular discovery mentioned regarding deuterostome relationships.