Which of the following statements is true about a modern phylogeny of life's history?
A)There are multiple independent origins of the distinct life forms: bacteria,plants,etc.
B)It is only based on living organisms since the reproductive isolation of extinct species cannot be determined
C)All forms of life including extinct branches are related
D)Genealogies can only be traced for groups where the primordial ancestor has survived

Question

Quizplus · Accepted Answer

A modern phylogeny of life's history shows that all life forms, including extinct branches, are related through common ancestry. This is supported by evidence from molecular biology, comparative anatomy, and the fossil record. Therefore, option C is the correct choice. Option A is incorrect because there is no evidence for multiple independent origins of distinct life forms. Option B is incorrect because reproductive isolation of extinct species can be inferred from the fossil record. Option D is incorrect because genealogies can be traced for all groups of organisms, not just those with surviving primordial ancestors.

Which of the Following Statements Is True About a Modern