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Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct?
Options
(a) It is present only in larval tail in Ascidians
(b) It is replaced by a vertebral column in adult frog
(c) It is absent throughout life in humans from the very beginning
(d) It is present throughout life in Amphioxus
Correct Answer:
It is absent throughout life in humans from the very beginning
Explanation:
Notochord is a flexible rod like structure that forms the main support of the body in the lowest chordates. It is not absent in humans through out their life. Notochord is present in embryonic stage and get changed or replaced by vertebral column in the adult
Related Questions: - Large woody vines are more commonly found in :
- Syngamy can occur outside the body of the organism in
- Storage of enzymes for the digestion of cellular components proteins and carbohydrates
- The placenta is attached to the developing seeds near the
- Which one of the following statements is correct for secondary succession ?
Topics: Plant and Animal Kingdom
(295)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Large woody vines are more commonly found in :
- Syngamy can occur outside the body of the organism in
- Storage of enzymes for the digestion of cellular components proteins and carbohydrates
- The placenta is attached to the developing seeds near the
- Which one of the following statements is correct for secondary succession ?
Topics: Plant and Animal Kingdom (295)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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