Question

1. the principle of faunal succession is the foundational concept that allows the creation and correlation of biozones. which statement best describes this relationship? faunal succession states that all fossils are found in all rock layers, and biozones are created by identifying areas where this is not true. faunal succession describes the specific, predictable order in which fossil species appear and disappear in the rock record, and a biozone is a formal ordering of the fossils defined by the presence of a characteristic fossil or fossil assemblage in that layer. faunal succession only applies to animal fossils, while biozones are strictly defined using plant fossils to determine the absolute age of the rock. faunal succession explains why index fossils are rare, and biozones are large geographic areas where these rare fossils can be found

Explanation:

Faunal succession is about the predictable order of fossil species in rock layers. A biozone is defined by a characteristic fossil or fossil assemblage in a layer. The first option is wrong as not all fossils are in all layers. The third option is incorrect as biozones aren't just about plant fossils for absolute age (they are for relative age). The fourth option is wrong as faunal succession doesn't explain index fossil rarity in that way.

Answer:

Faunal succession describes the specific, predictable order in which fossil species appear and disappear in the rock record, and a biozone is a formal ordering of the fossils defined by the presence of a characteristic fossil or fossil assemblage in that layer.