(1) Plants vegetation is sparse, grows during rains only. (Drought exoping)
(2) Annuals (Drought evaders)
(3) Succulents (Drought resisting) – stores water with mucilage and latex.
(4) Non succulent perennials (Drought enduring) – long roots and avoids transpiration by modification.
(5) Modifications
- leaves as spines and thorns
- Stems as water storage body with thick bark
- Long, deep roots with shoot system
Animals
- Lives in burrows
- Very little water requirement and can store water in modified body parts.
- Urine is concentrated and faeces is nearly solid with very little water and metabolic water is also used by them as source of water.
- Nasal counter- Current mechanism preventloss of water during breathing with small nostril size.
- Feeds on dry seeds and rehydrates and stores water when they reach a water body.
- Very small body surface are a so very less sweating so less water loss from body.
