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How are sharks and lampreys similar? Both have an open circulatory system. Both have a swim bladder. Both have a cartilaginous skeleton. Both are covered in scales.
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3 votes
How are sharks and lampreys similar?

Both have an open circulatory system.
Both have a swim bladder.
Both have a cartilaginous skeleton.
Both are covered in scales.

User Dijana
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2 Answers

1 vote
Both have a swim bladder
User Nulano
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4 votes

Answer:

both have a swim bladder

User MatheM
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