1. Chapter 30 Section 1- copy onto your notecards- you will turn them in before the test with your vocab cards.
Fishes
Essential Question:
What kinds of structural adaptations have fish evolved with to adapt to their environments?
Objectives:
To relate the structural adaptations of fishes to their environments.
To compare and contrast the characteristics of the different groups of fishes.
To interpret the phylogeny of fishes.

2. Phylogeny:
History of the evolutionary relationships of a group of organisms.
Based upon similarities and differences in their physical or genetic characteristics.

4. All classes of fishes possess a(n) _______,composed of fluid-filled canals arranged along the sides of the body, which permit them to detect movement and vibrations in the water.
Sharks and rays belong to the class Chrondrichthyes, which includes __________.

6. Many bony fishes possess a(n) ________, which is a thin-walled, internal sac found just below the backbone. By altering the gas pressure in this structure, a fish can control its depth in the water.
Fishes have a _______ chambered heart.

8. Fishes have great flexibility when they swim because they have _____.
Which of these pairs of traits are characteristic of all vertebrates?
Notochord and complex brain
Bilateral symmetry and closed circulatory system
Efficient respiratory system and asymmetrical body plan
Exoskeleton and open circulatory system
How do bony fish fertilize their eggs?
__________ help fishes control their depths in the water.
* Catfish, perch, salmon, and cod are members of the ______ sublcass of fishes.

9. Lampreys are parasites that attach themselves to other fishes by sucker-like mouths because they lack ___.
Which is the dorsal fin the figure?

10. Which of the following is not true?
Fishes reproduce sexually and asexually.
All fishes have two-chambered hearts.
Some species of fishes are adapted to live in deep, cold water where there is little sunlight.
Fish gills are made from gill filaments that have blood vessels.

11. Which types of fish have scales?
Which structure pictured in the figure allows a shark to feel vibrations of a struggling fish several hundred yards away?

12. See page 813: key concepts for section 30
See page 813: key concepts for section know the organisms that belong to the class Chondrichthyes.
Fishes depend on their ____ for balance, steering, and swimming. These structures are fan-shaped membranes supported by stiff spines
Breeding of fish is called ______.

13. What are the characteristic of Agnathans?
What is the major classification difference between fish A and fish B in the figure.

14. Of the following, which is a cartilaginous fish?
A fish can detect movement and vibrations in the water by means of its ____.
Of the following, which is a cartilaginous fish?
Seahorse
Ray
Pike
Eel
Bony Fishes come belong to the class ____.

15. See page 801 and be able to identify the following parts:
Stomach
Intestine
Liver heart
Gills
Kidney
Urinary bladder
Reproductive organ
Lateral line system
Swim bladder
fins