The Evolution of the Horse Shows What Evolutionary Trend(s)

Question

The evolution of the horse shows what evolutionary trend(s)?
A)The number of structures always increases;therefore complexity always increases.
B)Extinctions are often accompanied by the development of new species.
C)Animals always evolve from gentle grazers toward more vicious omnivores and carnivores.
D)Variations randomly drift from large to small,toward and away from grinding teeth,and to more or fewer toes,proving that evolution is indeed random.

Accepted Answer

The evolutionary trend shown by the horse is the development of new species accompanied by extinctions. The horse family has undergone many changes over millions of years, resulting in the development of new species such as Equus and the extinction of older ones such as Eohippus. This trend is consistent with the concept of natural selection, where organisms that are better adapted to their environment are more likely to survive and pass their traits on to their offspring, leading to the development of new species over time.