a) What is natural selection? b) Discuss three examples of natural selection in action.
a) What is natural selection? (Theory put forward by Charles Darwin that explains that)÷ Nature selects for individuals that are well adapted to a particular environment; and against those that are less adapted; (2 mks) b) Discuss three examples of natural selection in action. 1.Melanic forms of peppered moths in Europe. There are two forms of peppered moths; white and black. Before industrialization, the tree trunks were white. Therefore the white peppered moths were were camouflaged. The black varieties were easily noticed and fed upon by predatory birds; the white forms therefore reproduced and increased in number. During industrialization, the smoke from industries coated tree trunks black. The black variety became camouflaged, reproduced and their population increased. The white varieties were easily noticed and fed upon by predators; their population reduced. 2. Resistance against drugs and antibiotics, where microorganisms are continually exposed to a certain dru