Question

Explain the difference between Microevolution and Macroevolution, and give examples of each. ANSWER IN PARAGRAPH PLEASE

Answer 1

Ans.

1. Micro-evolution- When a gene pool of the population alters over time,resulting in small changes of an organism in the same species,the evolution thus occurred is referred to as a Micro-evolution.It occurs on a small scale,within a single population and the the few changes in the same species it gives rise to due to the change in the gene pool,is also called as Intra-species genetic change.The changes that happen in a micro-evolution will last only for a short time span.In this type of evolution the genetic information gets either altered or rearranged.Example: Evolution of the peppered moth,Galapagos finch beaks and new strains of flu viruses are all a micro-evolution.
2. Macro-evolution -It refers to the evolution that occurs gradually over a period of time and give rise to a completely new species,different from their ancestor,as a result of the alteration in organism.This type of evolution involves new addition and deletion in the genetic structure of the organism,that results in the evolution of an entirely new species.It either involves evolutionary changes in the two interacting species or may involve the emergence of a new species.Example:Development of vertebrates from invertebrates,origin of different phyla and development of feathers are all macro-evolution.