Why do Fennec Foxes have big ears? And don’t tell me to hear and regulate heat of their body I already know that

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

When ash and dust begin to settle on the ground, they eventually become compacted by

Why should organisms reproduce more offspring than will survive? select all that apply.