Chordates and Vertebrates Quiz

What is a characteristic feature of all chordates?

• Being warm-blooded

• Having a notochord

• Presence of a backbone

• Having scales

Which of the following is NOT a characteristic of chordates?

• Post-anal tail

• Pharyngeal pouches

• Dorsal nerve cord

• Exoskeleton

Which class of fishes includes sharks and rays?

• Agnatha

• Chondrichthyes

• Amphibia

• Osteichthyes

What type of heart do amphibians typically have?

• Two-chambered heart

• Three-chambered heart

• Four-chambered heart

• Single-chambered heart

What adaptation allows reptiles to lay eggs on land?

• Gills

• Amniotic egg

• External fertilization

• Metamorphosis

Which feature is unique to birds among vertebrates?

• External fertilization

• Three-chambered heart

• Feathers

• Scaly skin

From which group did birds evolve?

• Reptiles

• Mammals

• Fish

• Amphibians

What is a defining characteristic of mammals?

• Being ectothermic

• Possessing mammary glands

• Having feathers

• Laying eggs

Which group of mammals lays eggs?

• Placental mammals

• Monotremes

• Marsupials

• Reptiles

What is the primary method of reproduction in marsupials?

• Laying eggs

• External fertilization

• Giving birth to live young

• Internal fertilization with pouch development