Protochordates and Jawless Fish

Which jawless fish is parasitic?

• Hagfish

• Lamprey

Which type of fish was the first to evolve?

• Jawless

• Cartilaginous

• Bony

What is the habitat of hagfish?

• Deserts

• Marine environments

• Freshwater

• Grasslands

Hagfish produce and excrete this substance to make themselves harder to catch.

• Mucous

• Sweat

• Ink

• Air

What does the fish class name "Agnatha" mean?

• Jawless

• Cartilage fish

• Bony Fish

• Toothy

The tail fin of a fish is also known as the __________ fin.

• Pectoral

• Pelvic

• Dorsal

• Caudal

This is the organ where gas exchange occurs in fish.

• Gills

• Lungs

• Heart

• Operculum

Which group of animals do protochordates belong to?

• Vertebrates

• Invertebrates

• Mammals

• Reptiles

What is a defining characteristic of jawless fish?

• Presence of jaws

• Lack of vertebral column

• Lack of jaws

• Presence of scales

Tags

NGSS.MS-LS4-2

Which of the following is a protochordate?

• Amphioxus

• Shark

• Salmon

• Frog