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Adaptation of xerophyte in living in their habitats.Leaves modified to needle like structures reducing surface area for transpiration.Leaf surface coated with a relatively thick and waxy cuticle.Have few stomata located on lower leaf surfaceReversed stomatal rhythm to reduce water loss.Xerophytes have flattened shoots and succulent tissue for water storageSome Xerophytes have a short life cycle.Xerophytes sheds their leaves at the onset of droughts to reduce water loss.Some have long tap roots to draw water from deep sub-stratumFolds their leaves to reduce transpiration.
Structural adaptations of gullet to its functions include;Have circular and longitudinal musclesEpithelial lining has goblet cells
Uses of graphite based on its property are;Making electrodes; has delocalized electrodes making it a good electrical conductor.Used as lubricant; the hexagonal layer can slide over each due to weak van der waal forces making it slippery in nature.
Characteristics of a river on its old stage include;The widening of the valley through latent erosion creater an extensive area where the river deposits its load, the gradient of the plain is lowThe is speed of the flow is low the gradient of the plain is lowDue to the slow speed and the high deposition, the river forms pronounced meandersDue to the slow speed, the main work of the river is depositionDeposition along the banks of the river channel leads to formation of leevesThe reduced speed and increased deposition blocks the river mouth forcing the rivers to form distributances/delta