All types of latitudinal biomes are found telescoped on high hills found in

Consider the following four statements $(1-4)$ and select the correct pair of adaptations shown by desert lizards to manage their body temperature in their environment.
$(1)$ Burrowing into the soil to escape high temperatures.
$(2)$ Losing energy rapidly from the body during high temperatures.
$(3)$ Basking in the sun when the temperature is low.
$(4)$ Covering the body with a thick,fatty skin.

Match the types of niche in Column-$I$ with their description in Column-$II$.

$i$. Habitat niche	$a$. In the absence of competition in the habitat
$ii$. Trophic niche	$b$. Position of organism in the environmental gradient
$iii$. Multidimensional niche	$c$. Physical space occupied by an organism
$iv$. Fundamental niche	$d$. Level of organism in the food chain

What is homeostasis? Define aestivation.

Which of the following represents an organism and its ecological niche correctly?

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