NEETBotanyAnimal Kingdom
How many pairs of limbs do most amphibians have?
Options
- AOne
- BTwo
- CThree
- DFour
Correct answer
B. Two
Step-by-step solution
Explanation :The alimentary canal, urinary and reproductive tracts open into a common chamber called cloaca which opens to the exterior in amphibians. Respiration is by gills, lungs and through skin in amphibians. Most amphibians have two pairs of limbs. Reptiles are mostly terrestrial animals and their body is covered by dry and cornified skin. Heart is usually three-chambered in reptiles, but four-chambered in crocodiles.Reptiles are poikilotherms..Reptiles are poikilotherms. Fertilisation is internal. Reptiles a