ANATOMY

Detailed explanation-1: -Macroevolution refers to much bigger evolutionary changes that result in new species. Macroevolution may happen: When microevolution occurs repeatedly over a long period of time and leads to the creation of a new species.

Detailed explanation-2: -This model of macroevolution is called phyletic gradualism. It proposes that most speciation events are the result of a gradual and uniform transformation of one species into a new one through a process called anagenesis.

Detailed explanation-3: -Macroevolution is genetic change that occurs over long time scales, resulting in large changes in heritable traits in a population; changes large enough that we consider this population a unique taxonomic group, or species. Macroevolution is sometimes also termed speciation (the process by which a new species arises).

Detailed explanation-4: -Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.

Detailed explanation-5: -migration to a new region. mutation of genetic traits. genetic drift (random changes to gene frequencies within a population *natural selection (genetic mutations that enhance species survivorship or as a result of selective mating). 17-Jan-2022