The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.

ANSWER:

The evolutionary advantage is that it allowed them to climb rocky surfaces with ease.  

EXPLANATION:

Horses evolved to live in open grasslands. The evolution of horses from five digits to hooves was required so that they could move on hard surfaces with ease.

The horses gradually evolved to adapt to these conditions from five-toed ancestor by retaining four digits, then three, and a single central digit or the hoof. The single hoof is basically a long bone known as the metacarpal.  

i think that the correct answer is

c. p equals 5,000 times, 0.3, to the power of the fraction m over 20

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