Quiz on Early Life on Earth – Animal Origins

What was the top predator during the Cambrian Period?

• Opabinia

• Anomalocaris

• Trilobite

• Wiwaxia

What type of organisms were the earliest life forms on Earth?

• Microbes

• Ediacaran Biota

• Sponges

• Cyanobacteria

What significant event did cyanobacteria contribute to?

• Formation of Stromatolites

• Great Oxidation Event

• Cambrian Explosion

• End-Ediacaran Extinction

Tags

NGSS.MS-LS1-6

What are stromatolites?

• Hard structures made by microbes

• Early multicellular organisms

• Fossils of Ediacaran animals

• Iron-rich layers in rocks

Tags

NGSS.MS-ESS1-4

What evolutionary development allowed for complex animal bodies?

• Banded Iron Formations

• Stromatolites

• Photosynthesis

• Eukaryotic cells

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Which of the following was among the earliest animals?

• Brachiopods

• Corals

• Trilobites

• Sponges

Tags

NGSS.MS-LS4-1

What is the significance of the Ediacaran Period?

• Proliferation of diverse seafloor creatures

• Emergence of hard corals

• First appearance of trilobites

• Formation of Banded Iron Formations

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

NGSS.HS-LS4-5

What event marked the end of the Ediacaran Period?

• Cambrian Explosion

• Formation of the first reefs

• Great Oxidation Event

• End-Ediacaran Extinction

What was a major characteristic of the Cambrian Explosion?

• Wild explosion of new life forms

• Decline of stromatolite reefs

• First appearance of cyanobacteria

• Formation of Banded Iron Formations

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which organism is known for having five eyes?

• Opabinia

• Anomalocaris

• Wiwaxia

• Trilobite