Biology · ANIMAL KINGDOM

Consider the statement: 'All vertebrates are chordates, but all chordates are not vertebrates.' Which structural transformation during embryonic development justifies this statement?

The dorsal hollow nerve cord is replaced by a ventral solid nerve cord in adult vertebrates
The ventral muscular heart is replaced by a dorsal chambered heart during metamorphosis
Pharyngeal gill slits are replaced by lungs in all adult chordates
The embryonic notochord is replaced by a cartilaginous or bony vertebral column in adult vertebrates

Correct answer · Option 4

The embryonic notochord is replaced by a cartilaginous or bony vertebral column in adult vertebrates

Explanation

Members of subphylum Vertebrata possess a notochord during the embryonic period, which is replaced by a cartilaginous or bony vertebral column in adults. Protochordates retain or lose the notochord without forming a vertebral column.

Consider the statement: 'All vertebrates are chordates, but all chordates are not vertebrates.' Which structural transformation during embryonic development justifies this statement?

Correct answer · Option 4

Explanation

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Consider the statement: 'All vertebrates are chordates, but all chordates are not vertebrates.' Which structural transformation during embryonic development justifies this statement?

Correct answer · Option 4

Explanation

Related questions

ऑनलाइन कंप्यूटर आधारित परीक्षा

उपयोगी लिंक

महत्वपूर्ण पेज

कोर्सेज और अभ्यास

संपर्क करें

साझा करें