Which class belong a sirens to?
Birds
Mammals
Amphibians
Reptiles
Sirenidae, the sirens, are a family of aquatic salamanders (amphibians). Family members have very small fore limbs and lack hind limbs altogether. In one species, the skeleton in their fore limbs is made of only cartilage. Sirens are found only in the Southeastern United States and northern Mexico.
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answers
the United States
65
India
56
Greece
12
Poland
1682
the United Kingdom
33
Germany
31
Australia
10