Marine Science††††††††††††††††††††††††††††††††††††††††††††††††††† Shark Introduction CL

Cachon 2015††††††††††††††††††††††††††††††††††††††††††††††††††††††††††††

Per ____ Name _____________________________________ Date ___/___/____

 

http://www.defenders.org/sharks/basic-facts

1.     How many species of known sharks are there? _____________

2.    What type of predator are sharks? _____________________

3.    What are shark skeletons made of? ______________________

4.    Describe cartilage. ____________________________________________

5.    How many gill slits can sharks have? ______________________

6.    How are sharks camouflaged? _________________________________________________________

7.    What do sharks eat? _________________________________________________________

8.    How many millions of years were sharks here before dinosaurs? _________ mill.

9.    What type of attack do great white sharks generally use? _______________________

10. What is the average age for sharks to reach a reproductive age? __________________

11.  Why would sharks have a hard time recovering from overfishing, finning and by catch? ____________________________________________________________________________________________________________________________________

http://www.sharksider.com/facts-about-sharks/

1.     Where do shark teeth attach to if they donít attach to a jawbone? ________________

2.    How long does it take for the main row of shark teeth to be replaced? ______________

3.    About how many teeth can sharks have in a lifetime? _________________________

4.    How many rows of teeth can a shark have? ____________________________

5.    Why do sharks bite humans? _____________________________________________

6.    What happens to something that shark bites they donít like? _____________________

7.    How many fatal shark attacks occur on average yearly? ____________________

8.    How many shark attacks occurred in the US in 2011? ___________________

 

9.    How many of those were in Florida? __________

10. What percent of sharks, rays and skates are threatened with extinction? ___________

11.  What activity provokes the most attacks? _______________________

12. What is the average life expectancy of sharks? ________________

13. How long can the great white and spiny dogfish live? ___________________

14. How long have sharks been around for? _____________________________

15. Click on evolution of sharks. When have sharks first appeared? ___________________

16. What is the most notable characteristic that sharks have kept through the years? __________________________________

17. How many categories have sharks been classified in? _____________________

18. How are sharks first divided? ____________________________________________

19. Sharks that have an anal fin, 2 dorsal fins and a dorsal fin spine are classified as __________________________________________.

20.Sharks with no anal fin, body not ray like and have a short snout and not saw-like are classified as ________________________________.

21. What is ovoviviparous? _______________________________________________________________

22. How many known species of saw sharks are there? _______________________

23. What are spiracles? __________________________________________________

24. What is the function of spiracles? ________________________________________ Return to former window.

25. What is aprostrusile jaw? ___________________________________________

26.Do sharks sleep? ______________

27. What is the fastest specie of shark? ___________________________________

28. How fast are they? ____________________________

29. How big can a whale shark grow? __________________________________

30. How large can a megalodon grow? ____________________

 

 

 

 

 

 

Marine Science††††††††††††††††††††††††††††††††††††††††††††††††††† Shark Introduction CL

Cachon 2015†††††††††††††††††††

††††††††††††††††††††††††††††††††††††††††

Per ____ Name _____________________________________ Date ___/___/____

 

 

 

 

http://www.sharkguardian.org/shark-facts-top-100-shark-guardian/

 

Species Info

 


http://www.sharksider.com/facts-about-sharks/