A Major Change in the Evolutionary Lineage Leading to the Chordates

question 103

Multiple Choice

A major change in the evolutionary lineage leading to the chordates was the

• A) evolution of the water vascular system.
• B) development of a dorsal hollow nerve cord.
• C) calcification of an internal skeleton.
• D) development of the lophophore as an adaptation to predatory life.
• E) ability to filter feed.

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