Large size of pinnae in animals of warm regions in comparison to animals of cold regions is due to:

Consider the following four conditions $(i-iv)$ and select the pair that represents the adaptation of desert lizards to their environment.
$(i)$ Burrowing into the soil to escape high temperatures.
$(ii)$ Rapidly losing body heat during high temperatures.
$(iii)$ Basking in the sun and absorbing heat when the temperature is low.
$(iv)$ Insulating the body due to a thick layer of fat.

$A$ kind of similarity found in polar regions and high altitudes is

During adverse seasons,therophytes survive by:

Succulent xerophytes are likely to be found in

Select the correct option regarding adaptation.