Biology · Animal Embryology
भ्रूणीय रूप से, कशेरुकी मस्तिष्क की उत्पत्ति किस जनन स्तर (Germ layer) से होती है?
- 1एक्टोमेसोडर्म
- 2एंडोडर्म (अंतस्त्वचा)
- 3मेसोडर्म (मध्यत्वचा)
- 4एक्टोडर्म (बाह्यत्वचा)✓
सही उत्तर देखें
एक्टोडर्म (बाह्यत्वचा)
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