Transcript Practice Quiz Fish

Practice Quiz Fish
Class Agnatha
Hagfish
Hagfish feed on dead or dying fishes
Class Agnatha
Lamprey
Lampreys attach to other fishes and suck their blood.
Note the oral disc with horny teeth that can act as a rasp to cut a hole
in the fish they attach themselves to.
1. Mouth
4. Cloaca
2. Liver
5. Opening of cloaca
3. Spiral Valve
6. Rectal gland
Chondrichthyes
What is the function of #6?
Salt secretion
Cycloid
Placoid scales
Sharks have placoid scales
Ctenoid
What is the function of this sensory system?
The drawing shows the lateral line system of a shark. Boney
fishes also have a lateral line system. The lateral line system
allows the animal to detect shock waves in water just like your
eardrum responds to shock waves in air. This allows the animal
to detect movement in the water column such a swimmer kicking
in the water .
1. Pectoral fin
5. Caudal fin
2. Pelvic fin
6. Posterior dorsal fin
3. Lateral line
4. Anal fin
7. Anterior dorsal fin
8. Operculum
Common name? Ratfish
Kingdom?
Phylum?
Subphylum?
Animalia
Chordata
Vertebrata
Class?
Chondrichthyes
This shark has a
heterocercal tail.
1. Rostrum
7. Caudal fin (Heterocercal tai)
2. Mouth (Sharks have a ventral mouth)
8. Posterior dorsal fin
3. External gill slits
9. Anterior dorsal fin
4. Pectoral fin (Notice it is large and “wing-like”.)
10. Lateral line
5. Pelvic fin
11. Spiracle (a modified gill slit)
6. Clasper (The presence of a clasper makes this shark a male)
1. Gill Arch
2. Gill Raker
The holes are openings of sensory structures called Amullae of Lorenzini.
These sensory structures allow the shark to detect minute electrical currents.
1. Gill Arch
2. Gill Raker
3. Gill Arches
Swim bladder
Heterocercal
Homocercal
This fish is a whale shark. It is the largest living fish.
How does this animal feed?
Whale sharks are filter feeders that feed on plankton.
Animalia
Chordata
Osteichthyes
Parrot fish
1. Stomach
2. Pyloric caeca
3. Intestine
4. Esophagus
5. Stomach
6. Intestine
7. Pyloric caeca
1. Heart
2. Vein
3. Capillary bed (the site of gas exchange)
This is where oxygen leaves the blood and enters the tissues
4. Artery