Evolution

The preserved remains of an organism that lived long ago is a(n)

Fertile offspring can only be produced by members of the same 

Darwin studied the offspring of domesticated animals that were produced by

Today scientists know that organisms are much _____ diverse than Darwin imagined.

Scientists have supported evolution by comparing the early development of different

Darwin made a number of important observation on the ________ Islands.

An organism's ____________ is its basic body plan.

Scientists have founds a great deal of evidence that supports the theory of

___________ is a pattern of new species forming over very long periods of time

Similar structures that related species have inherited are called

The different bird beaks found on the Galapagos Islands are examples of  

Scientists infer that species with similar body structures had a common

_____________ is a pattern of new species evolving during short periods of rapid change.