The biome characterized by a layer of permafrost is known as:

Penguins are found in:

The $Veldts$ of $Africa$ and the $Pampas$ of $South$ $America$ are examples of which biome?

The moving away of an organism temporarily from the stressful habitat to a more hospitable area and return when stressful period is over is called . . . . . . .

$I.$ Biochemical adaptations are seen in organisms living at great depths of the ocean to face crushing pressure.
$II.$ Allen's rule explains adaptations in mammals living in colder climates.
$III.$ Altitude sickness is caused because the body does not get enough oxygen due to low atmospheric pressure at high altitudes.
$IV.$ Desert lizards lack behavioural means to manage their body temperature.
Choose the correct option for the above statements.

What percentage of organisms are conformers (in $\%$)?