Question

Choose the sentence that does not describe a structural adaptation. A. An elephant has a long trunk that it uses to reach leaves high in a tree. B. A dog walks to a stream and drinks when it gets thirsty. C. A hummingbird has a long, thin beak to sip nectar from flowers. D. A rosebush has thorns to protect it from animals that might eat it.

Answer 1

(B) A dog walks to a stream and drinks when it gets thirsty.

Answer 2

B. A dog walks to a stream and drinks when it gets thirsty
Why? A structural adaptation shows a being physically evolving in order to increase said being's chances of survival. B is not an example of this, since there is no mention of the dog's body changing in order to increase the dog's chances of survival.