Some major changes that occurred in horse body size, foot anatomy and tooth morphology are hypothesized to be due to natural selection because of ...

A. changes in global climates which resulted in changing environments from forest to grasslands.
B. changes in global climates which resulted in changing environments from grasslands to forests.
C. changing climates from dry to wet.
D. changing climates from wet to dry.
E. increase in reproduction of larger animals due to lack of water in the dry environment.


A. changes in global climates which resulted in changing environments from forest to grasslands.

Biology & Microbiology

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