- 1(current)
Q. No.In chordates, the dorsal hollow nerve cord is significant because it:
| 1. | Forms the basis of the central nervous system |
| 2. | Aids in excretion through paired nephridia |
| 3. | Forms a respiratory channel for gas movement |
| 4. | Produces digestive enzymes in larvae |
Subtopic: Phylum Chordata |
95%
Level 1: 80%+
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Which statement regarding chordates is correct?
| 1. | Dorsal hollow nerve cord is present at some stage |
| 2. | Notochord persists throughout life in all chordates |
| 3. | Ventral nerve cord is solid |
| 4. | Heart is dorsal |
Subtopic: Phylum Chordata |
76%
Level 2: 60%+
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- 1(current)
Q. No.
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