Lancelets

How do lancelet's obtain oxygen?
Lancelets have a closed circulatory system with a heart-like, pumping organ located on the ventral side, and they reproduce sexually. Unlike other aqu...
Describe two ways in which lancelets obtain oxygen?
How does lancelet obtain food?What advantage does the jaw provide?How do lancelets and tunicates differ from most chordates?Do lancelets use pharynge...