Examlex
Which of these is the best example of an agent?
Ediacaran Fauna
Ediacaran fauna is a group of animal species that existed during the Ediacaran period, just before the Cambrian. The oldest Ediacaran fossils are about 570 million years old. Ediacarans included diverse species that looked like fronds, geometrical disks, and blobs covered with tire tracks. They appear to have become extinct 540 million years ago, although some researchers argue that certain Ediacaran taxa belong to extant animal clades.
Extinction
Refers to the permanent loss of a species. It is marked by the death or failure to breed of the last individual.
Stromatolites
Layered structures formed by the mineralization of bacteria.
Zircons
Minerals that are widely used in dating geological structures due to their ability to encapsulate and preserve uranium-lead isotopes over immense periods.
Q12: According to numerous studies, what is the
Q20: Public opinion polls generally indicate that most
Q22: What is the most limiting factor for
Q23: In MDCs, employment is increasing more rapidly
Q29: The _ is less responsive to constituents
Q32: Compare and contrast systems of dual federalism
Q36: What important social movement promoted the goals
Q53: The electoral college represents a compromise between
Q62: Currently, there are 13 federal _, which
Q64: How has the concept of pilgrimage changed