Exam 9: Geology and Primate Origins

Adapids resemble modern __________.

Explain the climatic shifts that typify the Pleistocene.How might have these conditions effected hominin evolution?

All living Old World primates have a __________ dental pattern.

Which is the least inclusive division of the Geologic Time Scale

The concept of index fossils is associated with which principle?

A scientist studying the biological and geological processes of fossilization is engaging in the science of __________.

Citing specific examples,explain how both the adapoids and omomyoids differ from plesiadapiforms.

According to DNA comparisons,Old World monkeys and apes shared an ancestor until about __________.

What are two scenarios for the arrival of primates in the New World? Which of these is favored by scientists now?

What are some possible reasons for the origin and diversification of true anthropoids during the Oligocene? Include both fossil and climatic information in your answer.

Aegyptopithecus belongs to the __________ family of primates.

Compared to its contemporary mammals,Purgatorius had __________.

__________ is a dating technique using comparisons of fossils.

We live in the __________ epoch.

The story of climate change during the Cenozoic is generally one of __________.

Citing specific examples,explain how scientists use proxies to reconstruct ancient environments.

__________ is the study of geologic deposits and their formation.

A molecular clock can only work if the molecule used to make the tree is changing at a similar rate in each lineage in a phylogeny.

Chronometric dating techniques provide __________.

Since the Miocene,the number of ape species has increased,while the number of monkey species has decreased.