Alpine forests of the Himalayas have:

Many freshwater fishes cannot live in seawater and vice versa because of:

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.

Thick cuticle,sunken and scotoactive stomata,$CAM$ photosynthesis,and conversion of leaves into spines are some of the important characters of

Which of these is/are considered the major biomes of the world?

Definition / Explanation: Poikilotherms