Which process of evolution does not change the total number of species?
A)Branching evolution
B)Nonbranching evolution
C)Extinction
D)All change the number of species

Question

Quizplus · Accepted Answer

Nonbranching evolution, also known as anagenesis, is the process by which a species transforms into a new, distinct species over time through gradual changes in its genetic composition without splitting or branching into new species. This process does not change the total number of species. Branching evolution (A) does change the total number of species as it involves the splitting of a species into different descendant species. Extinction (C) also changes the total number of species as it involves the complete disappearance of a species. Therefore, option D is incorrect as it states that all processes change the number of species.

Which Process of Evolution Does Not Change the Total Number