Turmeric is a spice that contains Curcumin, a chemical compound that has been found to have anti cancer properties. For centuries, turmeric has been used as an antibiotic in India to provide relief in wounds and cuts.
Lesson Summary. In summary, directional selection is a type of natural selection in which individuals with a trait at one end of a phenotypic spectrum are most fit. Disruptive selection is a type of natural selection in which individuals at either end of a phenotypic spectrum are most fit.Stabilizing selection is a type of selection in which individuals in the middle of a phenotypic spectrum are most fit.esson Summary. In summary, directional selection is a type of natural selection in which individuals with a trait at one end of a phenotypic spectrum are most fit. Disruptive selection is a type of natural selection in which individuals at either end of a phenotypic spectrum are most fit.
Types of Natural Selection. Directional selectionDirectional Selection:A type of selection that removes individuals from one end of a phenotypic distribution and thus causes a shift in the distribution. occurs when natural selection favors one extreme of continuous variation.ver time, the intermediate states become more common and each extreme variation will become less common or lost. Natural selection can occur with or without environmental change. 1  In a constant environment, natural selection will keep a population stable and essentially maintain the status quo.