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Statement-1 : Cephalochordata bears noto...

Statement-1 : Cephalochordata bears notochord all along the body throughout life
Statement-2 Urochordate bears vertebral column only in tail region throughout the life
Then which is correct?

A

Both stetement -1 and Statement -2 are correct

B

Statement -1 is correct, statement -2 is wrong

C

Statement -1 is wrong, statement -2 is correct

D

Both statement -1 and statement -2 are wrong

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the statements provided in the question, we need to evaluate each statement regarding the characteristics of Cephalochordata and Urochordata. ### Step-by-Step Solution: 1. **Understanding Cephalochordata**: - Cephalochordates, such as lancelets, possess a notochord that extends throughout their entire body for their entire life. This characteristic is a defining feature of this group. - Therefore, **Statement-1**: "Cephalochordata bears notochord all along the body throughout life" is **True**. 2. **Understanding Urochordata**: - Urochordates, such as tunicates, have a notochord present only during their larval stage. In the adult form, the notochord is reduced or absent, and they do not possess a vertebral column throughout their life. - Therefore, **Statement-2**: "Urochordate bears vertebral column only in tail region throughout the life" is **False**. The vertebral column is not present in the adult stage of Urochordates. 3. **Conclusion**: - Since Statement-1 is true and Statement-2 is false, the correct answer is that only Statement-1 is correct. ### Final Answer: - Statement-1 is correct. - Statement-2 is incorrect.
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