Biology Week 20 Chordates quiz Name:
Fill in the blank in each of the following statements.

  1. The Chordate becomes the endoskeleton in vertebrates.

  2. Pharyngeal pouches become the in fish.

  3. The skeleton is composed of the skull and vertebral column.

  4. The skeleton is composed of the limbs, pelvic and pectoral girdle.

  5. The skeleton of lampreys is composed of .

  6. Ninety five percent of all fish are in the Class .

  7. Adult amphibians have a heart with chambers.

  8. The fin of fish provides the forward motion.

  9. The is a hard protective covering for the gills.

  10. The largest lobes of the fish brain are the lobes.

  11. The brain is connected directly to major sense organs by the nerves.

  12. The trout is the Arizona state fish.

True-false questions, use a plus (+) for true or a zero (O) for false.

13. The fish heart consists of a atrium which is a collection chamber and a ventricle chamber which pumps the blood.

14. Fish have eyelids.

15. Fish without a swim bladder will sink if they stop moving their fins.

16. Pectoral fins help move the body of a fish up and down.

17. Reptiles and amphibians have claws on their toes.

18. Reptiles have a three-chambered heart.

19. Amphibians have a skin protected by scales.

20. Birds are warm-blooded.

21. Structures containing pigment to produce color patterns in fish are called chloroplasts.


22. Draw and label the parts of a fish: internal & external



23. Draw and label the brain of simple vertebrates.



24. Draw and label a simple chordata body plan. (lancelate)