The images show two different types of galapagos tortoises that scientists believe descended from the same species. the first type (left) are found on islands that have vegetation and few grasses. the second type (right) are found on an island that has large amounts of grasses and low lying scrubs. what explains the type of turtle found on the islands with high vegetation?
a)the environment triggered a gene mutation in neck length in order to the turtle survive,
b)mutations are random, so it is by chance that turtles with longer necks live on these islands,
c)turtles with genes for long necks had a better chance of surviving go reach reproductive age,
d)turtles with shot necks completely lacked adaptations for finding food, so they died off.