When organisms change their location to escape unfavourable harsh environment,it is called . . . . . . .

In plants,which of the following explains their functions and characteristics?

The rule which states that mammals from colder climates generally have shorter ears and limbs to minimize heat loss is known as:

Community is:
$I.$ Group of independent,interacting populations of same species
$II.$ Group of independent and interacting populations of same species in specific area
$III.$ Group of independent interacting populations of different species in a specific area
$IV.$ Group of independent and interacting populations of different species in different area
Select the correct option.

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 . . . . . . .

Match Column-$I$ with Column-$II$ and choose the correct option.

Column-$I$	Column-$II$
$a.$ Aestivation	$(i)$ Over wintering
$b.$ Hibernation	$(ii)$ Over summer
$c.$ Diapause	$(iii)$ Suspended development in zooplanktons