Lesson 3 Mass Extinctions

Multiple Choice

Which of the following statements best describes amphibians?

• They live part of their life on land and part in water.

• They have scaly skin and lay eggs with tough shells.

• They are only found in water.

• They are warm-blooded animals.

Multiple Choice

Which of the following is a characteristic of mammals?

• They lay eggs

• They control their own body temperature and feed milk to their young

• They breathe through gills

• They have scales instead of fur

Multiple Choice

Based on the timeline, during which period did the first mammals evolve?

• Cambrian

• Triassic

• Jurassic

• Cretaceous

Multiple Select

Which of the following are common causes of mass extinction? Select all that apply

• Natural disasters

• Climate change

• Competition with new species

• Human activities

Multiple Choice

Extinction is the complete loss or death of a ___.

• species
• game

• habitat
• solar system

Multiple Choice

Which of the following were most affected during the Triassic-Jurassic Mass Extinction?

• Marine reptiles

• Flowering plants

• Dinosaurs

• Trilobites

Open Ended

Reflecting on today's lesson about the emergence of life, what is one thing you found most interesting or surprising about amphibians or reptiles?