LIFE SCIENCE

Detailed explanation-1: -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-2: -Macroevolution generally refers to evolution above the species level.

Detailed explanation-3: -The term macroevolution can also be used to explain the shared common ancestry between all living organisms, a concept known as Universal Common Descent.

Detailed explanation-4: -Macroevolutionary processes, such as origins, diversifications, and extinctions, happen on a grand scale and take time-geologic time. To understand such processes requires historical evidence, for example, fossils dating back hundreds of millions of years, or slowly evolving molecular sequences.

Detailed explanation-5: -Macroevolution. Evolution on a large scale. This involves speciation, or the splitting of a species into two or more species. Both of theses evolutionary processes result from the same processes, and the only reason they are different is due to the scale at which they occur.