Question

Select two statements that would best explain the change in horses’ body mass over millions of years.

(1 point)
Responses

Large body mass occurred in individuals as they became adults
Large body mass occurred in individuals as they became adults

There was increased food availability.
There was increased food availability.

There was decreased food availability.
There was decreased food availability.

Horses with larger body masses were less likely to survive and reproduce.
Horses with larger body masses were less likely to survive and reproduce.

Horses with larger body masses were more likely to survive and reproduce.
Horses with larger body masses were more likely to survive and reproduce.
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Answer 1

The two statements that would best explain the change in horses’ body mass over millions of years are:

1. **There was increased food availability.**
2. **Horses with larger body masses were more likely to survive and reproduce.**

These statements reflect the idea that as food resources became more abundant, horses with larger body sizes had an advantage, enabling them to thrive and pass on their traits to future generations.