Just as a person moving from Delhi to Shimla to escape the heat for the duration of hot summer,thousands of migratory birds from Siberia and other extremely cold northern regions move to:

Below is the diagrammatic representation of the response of organisms against temperature. Find out the correct match.

$I.$ Many xerophytic plants have thick cuticle on leaf epidermis and sunken stomata.
$II.$ Some xerophytic plants have a special photosynthetic pathway $(CAM)$ that enables their stomata to close during the day.
$III.$ $Opuntia$ has spines (modified leaves) and a photosynthetic phylloclade (stem).
$IV.$ All adaptations are genetically fixed in all organisms.
Choose the combination of correct statements.

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

Consider the following four statements regarding certain desert animals like the kangaroo rat:
$(a)$ They have a dark color,a high rate of reproduction,and excrete solid urine.
$(b)$ They do not drink water,breathe slowly to conserve water,and their body is covered by thick hair.
$(c)$ They use dry seeds as food and do not require drinking water.
$(d)$ They excrete very concentrated urine and do not use water to regulate body temperature.
Which two of the above statements are true for such animals?

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.