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 high vegetation and few grasses. The second type (right) are found on an island that has large amounts of grasses and low-lying shrubs. 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 help 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 to reach reproductive age.
D.
Turtles with short necks completely lacked adaptations for finding food, so they died off.

Turtles with genes for long necks had a better chance of surviving to reach reproductive age because the long neck enables the turtles to reach the food source that is present on a certain height. So they are able to survive and complete its life cycle.

So we can conclude that option C is the right answer.

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okpalawalter8 okpalawalter8 · Answer 2 · 2022-06-17T19:29:16+02:00

"The images show two different types of Galapagos tortoises that scientists believe descended from the same species." the type of turtle found on the islands with high vegetation. Turtles with genes for long necks had a better chance of surviving to reach reproductive age. Option C. This is further explained below.

What is the Galapagos tortoise?

Generally, the Galapagos tortoise is simply defined as the Galápagos gigantic tortoise, belongs to the genus Chelonoidis and is the largest species of tortoise.

In conclusion, a turtle species typical to islands with dense flora. Those turtles that had the genes for a longer neck were more likely to live to reproduce.