Question Detail
Question
Which extinct organism is shown in the vertebrate lineage charts as a precursor or close relative to early chordates?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Pikaia is illustrated as an early ancestral population or relative in the vertebrate phylogeny diagram. Cephalochordates and tunicates are extant crown-group chordates.
Hint
Look for the specific fossil name mentioned alongside Vetulicolians.