Plains with snow,ice,and frozen soil for most of the year are found in

In colloquial language,habitat is a postal address while niche is the . . . . . . of the organism.

$A$: Some organisms can maintain internal homeostasis by means of physiological processes and are called 'Regulators'.
$R$: 'Regulators' can maintain internal homeostasis only up to a limit of stressful conditions.

Give one example for each of the following:
$(i)$ Eurythermal plant species: $................$.
$(ii)$ $A$ hot water spring organism: $................$.
$(iii)$ An organism seen in deep ocean trenches: $................$.
$(iv)$ An organism seen in a compost pit: $................$.
$(v)$ $A$ parasitic angiosperm: $................$.
$(vi)$ $A$ stenothermal plant species: $................$.
$(vii)$ Soil organism: $................$.
$(viii)$ $A$ benthic animal: $................$.
$(ix)$ Antifreeze compound seen in Antarctic fish: $................$.
$(x)$ An organism which can conform: $................$.

Kangaroo rat is found in .........

Match the columns:

Column-$I$	Column-$II$
$(a)$ Bears	$(i)$ Diapause
$(b)$ Snails	$(ii)$ Hibernation
$(c)$ Zooplanktons	$(iii)$ Dormancy
$(d)$ Seeds	$(iv)$ Aestivation