You are presented with the question "Specialization occurs when competing creatures evolve as the what?" and the following answer choices: 
- habitats grow
 - salamanders
 - animals develop
 - times change
 - It helps them survive
 - principals of aerodynamics
 - environments change
 - remains of prehistoric life

Now knowing that specialization occurs when competing species evolve different adaptations and most species are highly specialized for their environments and evolve as the environments change, choose the best answer.


 

       environments change  