Which of the following are examples of microevolution?

(a) DDT resistant mosquitoes

(b) Antibiotic resistant microbes

(c) Industrial melanism

(d) Development of vertebrates from invertebrates

While microevolution can be used to refer to the alteration in a gene pool of the population over a period of time leading to minute changes in the entity of the same species, macroevolution is the changes in an entity eventually producing totally different species significantly differing from their ancestors (e.g., development of vertebrates from invertebrates).