3. What Major Structure Found on Chondrichthyes Is Absent in Agnates?

Name:_________________________

Period_____ Date_________

Marine Biology Book
Questions on Jawless Fishes and Cartilaginous Fishes

1. The Agnatha are also called ______________________ the hagfish which is an agnate is also called ______ eels, explain why that is an appropriate name.

2. Draw the pacific hagfish from figure 7.3 page 144 label the following parts: Paired tentacles, mouth, gill slits, and mucus gland pores.

3. What major structure found on Chondrichthyes is absent in Agnates?

4. The denticle Scales of chondrichthyes are made from the same materials as ____________________.

5. Why are sharks sometimes referred to as Living Fossils?

6. Whale Sharks are ______________ feeders.

7. Fishes that live on the bottom are often called _________________. There are ________ species of Skates and Rays.

8. Draw the Goblin Shark from figure 7.6 below and label the bizarre rostrum above the snout.

9. Explain why some rays are called Stingrays (think about Steve Irwin, the crocodile hunter)

10. Read the blue colored section titled SHARK! From page 147 and summarize what the article is talking about in 3-4 sentences below.

11. Why are the Rat Fish their own separate group?

12. Draw the Elephant Fish from figure 7.8 on page 147.

Name:_________________________

Period_____ Date_________

Marine Biology Book
Questions on Jawless Fishes and Cartilaginous Fishes

1. The Agnatha are also called ______________________ the hagfish which is an agnate is also called ______ eels, explain why that is an appropriate name.

2. Draw the pacific hagfish from figure 7.3 page 144 label the following parts: Paired tentacles, mouth, gill slits, and mucus gland pores.

3. What major structure found on Chondrichthyes is absent in Agnates?

4. The denticle Scales of chondrichthyes are made from the same materials as ____________________.

5. Why are sharks sometimes referred to as Living Fossils?

6. Whale Sharks are ______________ feeders.

7. Fishes that live on the bottom are often called _________________. There are ________ species of Skates and Rays.

8. Draw the Goblin Shark from figure 7.6 below and label the bizarre rostrum above the snout.

9. Explain why some rays are called Stingrays (think about Steve Irwin, the crocodile hunter)

10. Read the blue colored section titled SHARK! From page 147 and summarize what the article is talking about in 3-4 sentences below.

11. Why are the Rat Fish their own separate group?

12. Draw the Elephant Fish from figure 7.8 on page 147.