In Chapter 5, one of the examples of evolution presented illustrated the changes in equine skull morphology that gradually led to the transformation of the ancestral species to a new equine species. What model of evolutionary change does this illustrate?
A) punctuated equilibrium
B) passive trend
C) phyletic gradualism
D) active trend

Question

In Chapter 5, one of the examples of evolution presented illustrated the changes in equine skull morphology that gradually led to the transformation of the ancestral species to a new equine species. What model of evolutionary change does this illustrate? 
A) punctuated equilibrium 
B) passive trend 
C) phyletic gradualism 
D) active trend

Quizplus · Accepted Answer

The gradual changes in equine skull morphology that led to the transformation of the ancestral species to a new equine species illustrate the model of phyletic gradualism. In this model, evolution occurs through steady and slow changes over time, rather than in sudden bursts or jumps.

In Chapter 5, One of the Examples of Evolution Presented