Question

which is the best way to complete the text? while it is true that some species of chameleons have the ability to change their skin ______ typically use this attribute to regulate their body temperatures—not to elude detection. color. they color; they color, they

Explanation:

The first option "color. They" creates two separate sentences. The second option "color; they" uses a semicolon which is appropriate for joining two independent clauses that are closely related. The third option "color, they" creates a comma - splice (an incorrect way of joining two independent clauses with just a comma).

Answer:

color; they