Paleozoic Era Quiz

During which period did the first animals on Earth appear?

• Silurian Period

• Ordovician Period

• Devonian Period

• Cambrian Period

What was the climate like during the Cambrian Period?

• Warm and wet without distinct seasons

• Mild and temperate with occasional snowfall

• Cold and dry with distinct seasons

• Hot and humid with frequent storms

What type of animals were the trilobites?

• Reptiles

• Invertebrates

• Amphibians

• Fish

What type of plants existed during the Ordovician Period?

• Mosses and plants without deep roots

• Algae in the ocean

• Flowering plants on land

• Conifers in the forests

What caused the ice age at the end of the Ordovician Period?

• Continental drift

• Volcanic eruptions

• Glaciers from the South Pole

• Global warming

What was the climate like during the Silurian Period?

• Hot and humid with monsoon rains

• Cold and dry with frequent snowfall

• Mild and temperate with distinct seasons

• Tropical and wet with little seasonality

What was the significant evolutionary innovation in the Silurian Period?

• First land plants

• First reptiles

• First shelled eggs

• First amphibians

What type of animals appeared on land for the first time during the Silurian Period?

• Crocodiles and alligators

• Turtles and tortoises

• Snakes and lizards

• Scorpions and millipede-like animals

What was the climate like during the Devonian Period?

• Mild and temperate with distinct seasons

• Hot and humid with monsoon rains

• Tropical and wet with little seasonality

• Cold and dry with frequent snowfall

What significant event occurred during the Carboniferous Period?

• Formation of the first conifers

• Appearance of the first reptiles

• Mass extinction of marine organisms

• Continental collision forming Pangaea