alleryStart learning →Which subphylum of chordates is described as burrowing filter-feeders lacking a brain and a distinct head?
AUrochordata
BCephalochordata
CHemichordata
DVertebrata
Answer & Solution
Correct answer: B. Cephalochordata
Lancelets (Cephalochordata) are small fish-shaped burrowers with no brain or clear head, and are the earliest-branching chordates.
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