According to this evolutionary tree,the archaea and eukaryotes last shared a common ancestor ________.
A)1)0 billion years ago
B)1)75 billion years ago
C)2)5 billion years ago
D)3)5 billion years ago

Question

According to this evolutionary tree,the archaea and eukaryotes last shared a common ancestor ________. 
A)1)0 billion years ago 
B)1)75 billion years ago 
C)2)5 billion years ago 
D)3)5 billion years ago

Quizplus · Accepted Answer

According to the evolutionary tree, the last shared ancestor of archaea and eukaryotes existed around 2.5 billion years ago, which is indicated by the branch point where these two domains of life split. The split between bacteria and archaea is thought to have occurred earlier, around 3.5 billion years ago. Therefore, option C is the correct answer.

According to This Evolutionary Tree,the Archaea and Eukaryotes Last Shared