The adaptations of organisms in a specific ecosystem are clues of evolution. for example, a giraffe has a long neck to reach leaves of high trees, birds migrate when cold weather comes etc
Frogs are cold blooded and most camouflaged frogs are nocturnal
A. Is the correct answer :)
Invertebrate doesn't posses "Backbone" whereas Vertebrate chordate have that. That's the only & most important difference between them.
Hope this helps!
What are your answer choices? i would say wave energy
