Overview
Recognise arid lands as places where water is not available to organisms because it is scarce or frozen. Mention that sun, extremes of temperature, and water scarcity are factors that desert lives have to cope with. Differentiate cold deserts (Tundra) from hot deserts (Sahara). Adaptation of organisms to arid lands.
What you'll learn
- Characteristics of arid lands.
- Types of arid lands.
- Distribution of the organisms in the habitat.
- Some adaptations of organisms to arid lands:
- (i) water conservation in plants and animals
- (ii) body temperature regulation in plants and animals.