Which of the following can be a basis of difference between a salamander and a house-wall lizard apart from their habitat?

Correct option is C

Correct Answer:(c) Scales on the skin
Explanation:
Salamanders and house-wall lizards are both amphibians and reptiles, but they have key differences. One of the notable differences is the presence of scales on the skin.
· Scales on the Skin:
· House-wall lizards (such as geckos) are reptiles, and they have scales covering their skin.
· Salamanders, on the other hand, are amphibians and typically have smooth, scale-less skin.
Key Differences:
· Egg-laying feature:
· Both salamanders and house-wall lizards lay eggs, but this feature is not a distinguishing factor since both exhibit this trait.
· Cold-blooded:
· Both salamanders and house-wall lizards are cold-blooded (ectothermic), so this is not a distinguishing factor.
· Three-chambered heart:
· Salamanders and house-wall lizards both have three-chambered hearts, so this characteristic does not help differentiate them.