Which biome is characterized by evergreen vegetation and drought-adapted animals?

Read the following statements with respect to the features of biomes and select the correct option for tropical rain forests:
$a.$ Buttress roots
$b.$ Vines,lianas and epiphytes are abundant
$c.$ Highly leached soils
$d.$ Soil has high base content
$e.$ $30-40 \; m$ tall canopy structure with $2-3$ strata only

$A$ characteristic which enables an organism to live in an environment is called

Organisms which can tolerate and thrive in a wide range of temperature are called .......... e.g. .........

$A$: Antarctic fishes have blubber to withstand sub-zero temperatures.
$R$: Blubber are proteins which allow the freezing of body fluids.

$A$ group of two or more than two plant species is called as