Vertebrate Classification and Characteristics

The video explores vertebrates, a group of animals with distinct characteristics like a backbone, skull, and endoskeleton. Vertebrates are classified into seven classes: mammals, birds, reptiles, amphibians, and three types of fish. Each class has unique features, such as endothermy in mammals and birds, and ectothermy in reptiles and amphibians. The video concludes with a review of these characteristics and their importance.

Approximately what percentage of all animal species are vertebrates?

• 50%

• 75%

• 25%

• 5%

Which of the following is NOT a characteristic of vertebrates?

• Backbone

• Exoskeleton

• Bilateral symmetry

• Two pairs of appendages

What is the term for animals that can regulate their body temperature internally?

• Cold-blooded

• Thermophilic

• Endothermic

• Ectothermic

Which class of vertebrates is known for having feathers and laying hard-shelled eggs?

• Birds

• Reptiles

• Amphibians

• Mammals

Reptiles are different from mammals because they are:

• Warm-blooded

• Feathered

• Endothermic

• Ectothermic

Amphibians undergo a transformation from aquatic larvae to:

• Aerial adults

• Amphibious adults

• Terrestrial adults

• Marine adults

Which type of fish has a skeleton made of bone?

• Bony fish

• Jawless fish

• Cartilaginous fish

• Primitive fish

Sharks and rays belong to which class of fish?

• Bony fish

• Cartilaginous fish

• Jawless fish

• Amphibians

Which of the following is an example of a jawless fish?

• Lamprey

• Turtle

• Seahorse

• Shark

What is the largest class of vertebrates?

• Reptiles

• Mammals

• Birds

• Bony fish