Vocabulary Crossword!!!

4. A marine invertebrate belonging to the phylum Chordata, subphylum Tunicata.
6. Bony fish with fishy, lobed, paired fins, which are joined to the body by a single bone.
10. Spiny tooth-like structures in cartilaginous fishes such as sharks, sting rays, etc…
12. Either of a pair of fins situated just behind the head in fishes that help control the direction of movement.
14. Another type of cartilaginous fish closely related to sharks and rays.
17. The tail fin (from the Latin cauda meaning tail), located at the end of the caudal peduncle.
20. Located on the top of a fish along the back between the head and tail.
21. Heart chamber that receives blood into the heart and drives it into a ventricle, or chamber, for pumping blood away from the heart.
22. Any so-called cold-blooded animal

1. A lid or flap of skin covering an aperture.
2. Muscular chamber that pumps blood out of the heart and into the circulatory system.
3. One of the two major clades of bony fish.
5. Dorsoventrally flattened fish that are closely related to sharks.
7. Common chamber and outlet into which the intestinal, urinary, and genital tracts open.
8. Jawless fishes
9. Either of a pair of fins situated just behind the head in fishes that help control the direction of movement.
11. An eel-like marsipobranch of the genus petromyzon, and allied genera.
13. A long, rod-like midline structure that develops dorsal to the gut tube and ventral to the neural tube
15. A gas-filled organ in the dorsal coelomic cavity of fish.
16. A sensory system that allows fishes to detect weak water motions and pressure gradients.
18. ANy of various small, transparent , fishlike marine organisms of the subphylum Cephalochordate that are related to vertebrates but have a notochord instead of a true backbone.
19. The tail fin (from the Latin cauda meaning tail), located at the end of the caudal peduncle.