Evolution of Life on Earth P1 G8 Q1

During which period did the 'Cambrian Explosion' occur?

• Ordovician

• Silurian

• Devonian

• Cambrian

What were the first chordates?

• Ancient worms

• Jawless fishes

• Trilobites

• Arthropods

Which period saw the emergence of plants and insects on land?

• Silurian

• Devonian

• Carboniferous

• Permian

What was the dominant land species during the Carboniferous Period?

• Amphibians

• Reptiles

• Mammals

• Birds

Which period saw the emergence of the first fully land-based vertebrates?

• Silurian

• Devonian

• Carboniferous

• Permian

What was the dominant life form during the Mesozoic Era?

• Mammals

• Birds

• Reptiles

• Amphibians

Which period saw the dinosaurs becoming the dominant land animals?

• Triassic

• Jurassic

• Cretaceous

• Permian

What was the largest sauropod during the Jurassic Period?

• Brachiosaurus

• Allars

• Iguanodon

• Triceratops

What event caused the extinction of the dinosaurs?

• Volcanic eruptions

• Climate change

• Asteroid impact

• Ice Age

Which period saw the emergence of the first human species?

• Paleogene

• Neogene

• Quaternary

• Cenozoic