in the divisions of the geologic time scale, the largest units are eons, which are divided into eras. eras are then divided into

centuries

epochs

periods

millennia

Fossils found in strata reveal that a) innate drive to complexity of life b) unused body parts decrease in size c) older strata carry fossils that differ greatly from living organisms d) geologic changes occur quickly on earth

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?