Which of the following organisms do not enter a state of dormancy to escape environmental stress?

Succulent xerophytes are likely to be found in

Alpine tundra is found in

$I.$ 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

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