Consider the following four conditions and select the correct pair of them as adaptation to environment in desert lizards. The conditions are:

I. Burrowing in soil to escape high temperature
II. Losing heat rapidly from the body during high temperature
III. Bask in sun when temperature is low
IV. Insulating body due to thick fatty dermis

The correct option is C I and III
Desert lizards lack the physiological ability that mammals have to deal with the high temperatures of their habitat, but manage to keep their body temperature fairly constant by behavioural means.

Desert lizards keep their body temperature fairly constant by behavioural means. Burrowing soil and active during morning and evening when the temperature is not so high are two main behavioural adaptions of a desert lizard.

They bask in the sun and absorb heat when their body temperature drops below the comfort zone, but move into shade when the ambient temperature starts increasing. Some species are capable of borrowing into the soil to hide and escape from the above-ground heat.