The Paleozoic, Mesozoic, and Cenozoic Eras Chapter 23 Review The Paleozoic, Mesozoic, and Cenozoic Eras

When there is no tectonic activity along the edge of a continent, the edge is referred to as a ____. coastline passive margin transgression regression

During the ____, all but one of the major marine phyla appeared. Cambrian explosion Antler Orogeny Caledonian Orogeny Ouachita Orogeny

The series of transgressions and regressions that produce cyclothems were likely produced by ____. tectonic collisions volcanic activity mass extinctions glaciation

As North America rifted from Europe and Africa, a continuous rift system called the ____ was formed. Gulf of Mexico Cordillera Mid-Atlantic Ridge East African Rift Valley

The southernmost point to which glaciers advanced in North America is marked by the path(s) of the ____. Ohio River and the Missouri River Missouri River Ohio River and the Mississippi River Mississippi River

In order to categorize a margin as active or passive, you must have information about________. the permeability of the margin rocks the amount of tectonic activity along the margin the depth of water that covers the margin the rate of glacial movement along the margin

Which line on the graph shows the sea level change that would result in continuous shoreline regression? A B C D

Seed plants that lived during the Carboniferous impact life on Earth today because________. they are the ancestors of all plant life on Earth their remains formed coal, which is an important resource they produced fossils that are used to date many geologic events their presence caused oxygen levels to drop, allowing animals to evolve

A rapid appearance of many new species of organism’s usually happens just before an extinction event leads to an increase in glaciation is directly related to a drop in sea level happens after a mass extinction

This graph best represents the populations of marine groups before and after the Cambrian explosion Ordovician extinction Permo-Triassic Extinction Event Alleghenian Orogeny

If two continents of equal size were to collide and become one, how would the total area of continental shelf space associated with the landmass change? it would be unchanged it would triple in would decrease in would double

Which point on the timeline best indicates the time when birds first appeared?

The extinction event shown on the time line was devastating to all land animals the most severe extinction event in Earth’s history mild compared to other extinction events most likely caused by widespread disease

The shaded are of this graph could be used to represent the portion of Earth’s land covered with ice at the peak of the Cenozoic ice ages the portion of Earth’s land that was a part of Pangaea the portion of Earth’s history during which humans have existed the portion of Earth’s history during which tectonic forces acted on Earth’s surface

Series of islands that divided Laurentia in half from north to south amniote egg Transcontinental Arch Caledonian Orogeny Gondwana mass extinction Ouachita Orogeny horsetail reduction in continental shelf regression

Movement of a shoreline seaward amniote egg Antler Orogeny Caledonian Orogeny Gondwana mass extinction Ouachita Orogeny horsetail reduction in continental shelf regression

Movement of a shoreline inland amniote egg Antler Orogeny Caledonian Orogeny Gondwana mass extinction Ouachita Orogeny horsetail transgression regression

The dying out of an unusually large number of species over a relatively short period mass extinction Antler Orogeny Caledonian Orogeny Gondwana Transcontinental Arch Ouachita Orogeny horsetail reduction in continental shelf regression

Large Paleozoic continent in the southern hemisphere amniote egg Antler Orogeny Caledonian Orogeny Transcontinental Arch Gondwana Ouachita Orogeny horsetail reduction in continental shelf regression

Collisional event that joined Gondwana and Laurasia amniote egg Antler Orogeny Caledonian Orogeny Gondwana mass extinction Ouachita Orogeny horsetail reduction in continental shelf regression

Contains fluid and food, and protects embryo Transcontinental Arch Antler Orogeny Caledonian Orogeny Gondwana mass extinction Ouachita Orogeny horsetail reduction in continental shelf amniote egg

One possible cause of the Permo-Triassic Extinction Event amniote egg Antler Orogeny Caledonian Orogeny Gondwana reduction in continental shelf Ouachita Orogeny horsetail Transcontinental Arch regression

Ancient geographic setting of an area Ancestral Rockies Burgess Shale cyclothem paleogeography passive margin Taconic Orogeny

Continental edge with no tectonic activity Ancestral Rockies Burgess Shale cyclothem paleogeography passive margin Taconic Orogeny

Mountain-building event named for the mountains of eastern New York State Ancestral Rockies Burgess Shale cyclothem paleogeography passive margin Taconic Orogeny

Contains fossils of soft-bodied Cambrian organisms Ancestral Rockies Burgess Shale cyclothem paleogeography passive margin Taconic Orogeny

Repeating pattern of sedimentary sequences stacked on top of each other Ancestral Rockies Burgess Shale cyclothem paleogeography passive margin Taconic Orogeny

Mountain range in present-day Colorado formed by inland uplift Ancestral Rockies Burgess Shale cyclothem paleogeography passive margin Taconic Orogeny

Evaporite rocks are more permeable than reef rocks. True False

Sea level increases when the number and size of glaciers on Earth increase. True False

The Cambrian explosion refers to a rapid increase in volcanic activity. True False

Rate of subduction is one factor that distinguishes the three phases of the Cordilleran Orogeny. True False

Reptiles can reproduce on land, while amphibians need water to reproduce. True False

The Permo-Triassic extinction event had a greater impact on the number of Earth’s species than did the extinction event at the end of the Cretaceous. True False

The tectonic forces that shaped Earth’s continents no longer have any impact on Earth’s features. True False

Dinosaurs’ skeletons can be distinguished from those of other reptiles by the structure of the hips and legs. True False

Rock tossed into the atmosphere by a meteorite impact can cause greenhouse warming. True False

This timeline correctly shows the order of time periods in the Mesozoic Era. True False

At the beginning of the Paleozoic, the North American continent of Laurentia was located near the Arctic Circle and was surrounded by ocean. True False

During the Cambrian, Laurentia was completely surrounded by passive margins, thus, no mountain ranges were actively forming. True False

Amniote eggs evolved in lobe-finned fishes, allowing them to overcome their dependence on water. True False

The Taconic Mountains of eastern New York resulted from the Antler Orogeny. True False

The largest insects that ever lived were preserved in the ideal environment of sandy beaches. True False

The Great Permian Reef Complex is the remains of a fossilized barrier reef. True False

When Pangaea broke apart, the western margin of North America was characterized by a(n) decrease in deformation. True False

Volcanism returned to the western coast of North America at the end of the Eocene. True False

During the peak of Pleistocene glaciation, glaciers up to 10-km thick covered some areas of North America. True False

Throughout the Early and Middle Triassic, before Pangaea split apart, this supercontinent and two oceans defined Earth’s paleogeography. True False

The first mammals, birds, and flowering plants arose during the Cenozoic, which was a time of many biological firsts. True False

As the climate cooled during the late Eocene, forests gave way to open land, which supported a diversity of large mammals. True False