In desert grasslands,which type of animals are relatively more abundant?

The genus $Quercus$ is a dominant component in:

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

$A$: Some organisms can maintain internal homeostasis by means of physiological processes and are called 'Regulators'.
$R$: 'Regulators' can maintain internal homeostasis only up to a limit of stressful conditions.

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

Quercus species are the dominant component in