Exam 9: Geology and Primate Origins

A gap between anterior teeth is called a __________.

A characteristic that differentiates apes from Old World monkeys is __________.

What is a parent-isotope?

Using Potassium-argon dating as an example,explain how radiometric dating works.

Which of the following states that strata are laid down parallel to the Earth's gravitational field?

Explain the climatic shifts that typify the Pliocene to the Early Pleistocene.

Describe the plesiadapiform mammals.In what ways do they resemble modern primates?

Explain how molecular phylogenies are created.In what ways are they advantageous and disadvantageous compared to fossil phylogenies?

__________ is a good candidate for the ancestor of all higher primates.

__________ is a common radiometric method for dating volcanic deposits.

Citing specific examples,explain how electron trap techniques work and the types of objects that may be dated with these methods.

Who proposed the principle of cross-cutting relationships?

Crystalline materials that have been buried in sediments may be chronometrically dated using the __________method.

The adaptations of a fused mandible and orbital closure in early monkeys were probably unrelated.

The Tertiary period spans from __________.

How do molecular clocks work? How is the accuracy of molecular clocks established?

Who is associated with the principle of superposition?

The probable ancestor of the gorilla,chimpanzee and bonobo lineages is __________.

Based on molecular evidence,strepsirhines and haplorhines separated about __________.

Where have Miocene apes NOT been found?