Zoology · Animal Kingdom
NEET (UG) 2025 — Question 133
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion (A): All vertebrates are chordates but all chordates are not vertebrate.
Reason (R): The members of subphylum vertebrata possess notochord during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults.
In the light of the above statements, choose the correct answer from the options given below:
- Option A:Correct
Both A and R are true and R is the correct explanation of A
- Option B:
Both A and R are true but R is not the correct explanation of A
- Option C:
A is true but R is false
- Option D:
A is false but R is true
Answer: A
Step-by-step solution
Assertion correctly states that all vertebrates are chordates but not all chordates are vertebrates.
Reason correctly explains that subphylum members have notochord replaced by cartilaginous/bony
vertebral column in adults.
Answer key and solution verified before publishing.
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- Exam
- NEET (UG) 2025
- Paper
- 2025 paper
- Subject
- Zoology
- Chapter
- Animal Kingdom
- Topic
- Phylum Chordata - CYCLOSTOMATA
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