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Lamprey is not a fish since it does not ...

Lamprey is not a fish since it does not have

A

Closed blood vascular system

B

Fins

C

Body scales

D

Cranium and vertebral column

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Lamprey**: Lampreys are a type of jawless fish belonging to the class Agnatha. They are often studied in the context of their differences from true fish. 2. **Identifying Key Features of Fish**: True fish typically possess certain characteristics that distinguish them from other aquatic animals. Key features include: - Jaws - Scales covering their bodies - A streamlined body shape - A closed circulatory system 3. **Analyzing Lamprey's Characteristics**: - **Jaws**: Lampreys lack true jaws. Instead, they have a round, sucker-like mouth. - **Body Scales**: Lampreys do not have scales, which are a common feature in most fish. - **Cranium and Vertebral Column**: Lampreys do have a cranium and a vertebral column, similar to fish. 4. **Conclusion**: Since Lampreys do not possess body scales, this is a significant reason why they are not classified as true fish. 5. **Final Answer**: Lamprey is not a fish since it does not have body scales.
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