Formation of major biomes such as desert and rainforest takes place by

Explain the responses of organisms to abiotic factors.

Based on temperature,plants are classified by:

Which one of the following factors is biotic?

Write a short note on:
$(a)$ Adaptations of desert plants and animals
$(b)$ Adaptations of plants to water scarcity
$(c)$ Behavioural adaptations in animals
$(d)$ Importance of light to plants
$(e)$ Effect of temperature or water scarcity and the adaptations of animals.

Desert biome does not support much vegetation as it lacks