The First Predators on Earth

What period followed the Ediacaran and saw a major diversification of early animals?

• Jurassic

• Triassic

• Devonian

• Cambrian

What were the first apex predators during the Cambrian period?

• Mammals

• Trilobites

• Anomalocarids

• Dinosaurs

How did anomalocarids capture their prey?

• With their tails

• Using spiky appendages

• By swallowing whole

• With venomous bites

What evolutionary pressure did anomalocarids exert on other organisms?

• Encouraged flight

• Led to the development of hard parts

• Promoted photosynthesis

• Caused extinction of all prey

What role did anomalocarids play in the Cambrian explosion?

• They were the first to fly

• They caused a mass extinction

• They triggered the development of defense mechanisms

• They were the first land animals

Which of the following adaptations was NOT driven by the presence of anomalocarids?

• Burrowing abilities

• Enhanced mobility

• Ability to fly

• Development of spines

Which of the following was NOT a factor in the extinction of anomalocarids?

• Environmental changes

• Competition from other predators

• Lack of prey

• Meteor impact

What group of animals took over as apex predators after anomalocarids?

• Birds

• Jawed fish

• Amphibians

• Reptiles

What was a significant impact of anomalocarids on future ecosystems?

• They led to the rise of mammals

• They initiated a predator-prey arms race

• They caused the extinction of all marine life

• They stopped evolution

How long did trilobites survive compared to anomalocarids?

• 300 million years

• 100 million years

• 500 million years

• 50 million years