Tag Archives: MRCA

Explain how certain are you of the accuracy of your answers? Which of these five aspects of the MRCA are you least confident about, and why?

Evolution predicts that you and your focal organism (marbled salamander) share common ancestry, extending from the origin of life on Earth in an unbroken lineage to an actual species that lived somewhere on our planet long ago—the Most Recent Common Ancestor of the two species. Your assignment is to reconstruct the MRCA of Homo sapiens […]