Where is the dorsal hollow nerve cord located relative to the notochord?

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Prepare for the Diversity of Life Test. Explore diverse biological concepts through multiple choice questions, with hints and explanations included. Get exam-ready now!

Multiple Choice

Where is the dorsal hollow nerve cord located relative to the notochord?

Explanation:
In chordates, the dorsal hollow nerve cord runs along the back and lies above the notochord. The notochord sits more ventrally, providing axial support, while the nerve cord forms above it from the ectoderm. So the nerve cord is positioned on the dorsal side relative to the notochord. The other spatial ideas—ventral (below), lateral (to the side), or inside the notochord—don’t match this arrangement.

In chordates, the dorsal hollow nerve cord runs along the back and lies above the notochord. The notochord sits more ventrally, providing axial support, while the nerve cord forms above it from the ectoderm. So the nerve cord is positioned on the dorsal side relative to the notochord. The other spatial ideas—ventral (below), lateral (to the side), or inside the notochord—don’t match this arrangement.

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