The website has the complete lesson note for all the subjects in secondary school but this piece showcases the SS1 Biology Lesson Note on Arid Land. You can use the website search button to filter out the subject of interest to you.
CLICK HERE to download the complete Document: DOWNLOAD HERE
ARID LAND
Arid lands are places of water scarcity or where water remains frozen. Tropical hot desert is known for excessive heat and inadequate rainfall resulting in dryness. In the cold deserts, the soil is frozen for most of the year. The heat of the sun is so weak that the ice does not melt in many places. As a result water is not available for plant use.
CHARACTERISTICS OF ARID LANDS
The tundra is covered with ice in most periods of the year.
TYPES OF ARID LANDS
Arid are terrestrial habitats without water. There are two types of these arid lands.
DISTRIBUTION OF ORGANISMS IN ARID LANDS.
Very few plants survive in the arid lands and include the cactus family, grasses and thorny shrubs. As soon as rain falls the seeds germinate and make food available for a short time for primary consumers. Grasses grow during the short wet periods.
Fewer animals live under vegetable litters or branches, leaves and trunk of trees and shrubs while many more live in burrows in the soil. Among the primary consumers are bettles, larvae of insects, ants, grasshoppers and small animals like rodents. They feed partly on seeds and partly on dry remains of desert vegetation. Higher–order consumers are centipedes and scorpions. The predators are carnivores such as lizards, geckos, vipers and spiders.
SOME ADAPTATION OF ORGANISMS TO ARID LANDS.
Click on the Downloadable Button to get the FULL NOTE
Do you want to study Agricultural Extension in OOU? Before you apply for the OOU…
Do you want to study Agricultural Economics in OOU? Before you apply for the OOU…
Do you want to study Cooperative and Business Management in OOU? Before you apply for…
Do you want to study Home and Hotel Management in OOU? Before you apply for…
Do you want to study Animal Production in OOU? Before you apply for the OOU…
Do you want to study Crop Production in OOU? Before you apply for the OOU…