Use the graph to answer the question.

Question

Using fossil evidence, scientists can learn how organisms have changed over long periods of time. The chart below shows information about how the body mass of ancestors of the modern horse have changed over time
Population after selection
Original population
Select two statements that would best explain the change in horses' body mass over millions of years.
Horses with larger body mass were selected for
Horses with larger body mass had higher fitness
Horses with a smaller body mass had higher fitness
Large body mass occurred in individuals as they became adults
Horses with smaller body mass were selected for

Answer 1

1. Horses with larger body mass were selected for
2. Horses with larger body mass had higher fitness