Sympatric <span>Speciation. ......................................................................</span>
This question isn't very specified but i'm pretty sure by the context the answer is gonna be tree frogs.
Trench<span>: very deep, elongated cavity bordering a continent or an island arc; it forms when one tectonic plate slides beneath another.
</span>
Ridge<span>: underwater mountain range that criss-crosses the </span>oceans<span> and is formed by rising magma in a zone where two plates are moving apart.</span>