Mammals and Reptiles Characteristics

The video tutorial explains the differences between mammals and reptiles. Mammals are vertebrates with backbones, hair, and mammary glands, making them warm-blooded and capable of maintaining a constant internal temperature. They give birth to live young and produce milk. In contrast, reptiles are also vertebrates but are cold-blooded, laying eggs and adjusting their internal temperature to their surroundings. They have lungs for breathing and typically have four legs for crawling.

What is a defining characteristic of mammals that classifies them as vertebrates?

• They have scales.

• They have a backbone.

• They lay eggs.

• They are cold-blooded.

How do mammals protect themselves from cold and environmental hazards?

• By laying eggs.

• By having hair on their body.

• By having feathers.

• By having scales.

What does it mean for mammals to be warm-blooded?

• They have a high body temperature.

• They lay eggs in warm environments.

• They maintain a constant internal temperature.

• They can change their internal temperature.

What is the typical internal temperature for humans?

• 40 degrees centigrade

• 37 degrees centigrade

• 30 degrees centigrade

• 25 degrees centigrade

How do reptiles reproduce?

• By laying eggs.

• By binary fission.

• By giving birth to live young.

• By budding.

What does it mean for reptiles to be cold-blooded?

• They can change their internal temperature according to the environment.

• They maintain a constant internal temperature.

• They have a high body temperature.

• They are always cold to touch.

How do reptiles breathe?

• Through lungs.

• Through spiracles.

• Through gills.

• Through their skin.

What helps reptiles in crawling?

• Their tails.

• Their four legs.

• Their fins.

• Their wings.