Exploring the Paleozoic Era 11.2

How did the Paleozoic era END ?

• with water covering all the landmass

• with a spectacular burst of new life forms

• with the biggest mass extinction in Earth history

• with the existence of only invertebrates on land

Which are the first and last periods of the Paleozoic era ?

• Permian and Silurian

• Silurian and Devonian

• Cambrian and Permian

• Devonian and Cambrian

Which two geologic periods make up the late Paleozoic Era ?

• Cambrian and Ordovician

• Carboniferous and Permian

• Sularian and Devonian

• Cambrian and Permian

What are large areas of wetlands where plant material changed into coal over time called ?

• Supercontinents

• Coal swamp

• Mountain ranges

• Inland seas

When was the supercontinent Pangaea Formed ?

• Late Paleozoic

• Early Paleozoic

• Middle Paleozoic

• Early Cambrian

Which life forms appeared during the late Paleozoic Era ?

• Animal lost backbones

• Amphibians lived on land and in water in that period

• All life moved into the oceans

• Small insects and plants appeared

• The first reptiles appeared

How did the formation of Pangaea change the climate ?

• It made the climate drier and cooler

• It made the climate wet and hot

• It made the climate drier and warmer

• It made the climate wet and cool

During which period of the Paleozoic era did the largest mass extinction in the earth history take place ?

• The Devonian

• The Carboniferous

• The Permian

• The Silurian

What can you tell from the digram below ?

• The Paleozoic era is the longest era

• The Mesozoic era was the shortest era

• The Cenozoic era came before Paleozoic era

• The Cenozoic era is the oldest era

In the geological timescale, an eon is the longest unit of geologic time and is divided into eras. What is an era divided into ?

• Eppochs

• Years

• Ages

• Periods