Practice Quiz Fish

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Practice Quiz Fish
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Class Agnatha
Hagfish
Hagfish feed on dead or dying fishes
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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.
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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
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Cycloid
Ctenoid
Placoid scales
Sharks have placoid scales
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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
.
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1. Pectoral fin
5. Caudal fin
6. Posterior dorsal fin
2. Pelvic fin
7. Anterior dorsal fin
3. Lateral line
8. Operculum
4. Anal fin
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Common name?
Ratfish
Kingdom? Phylum? Subphylum? Class?
Animalia
Chordata
Vertebrata
Chondrichthyes
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This shark has a heterocercal tail.
7. Caudal fin (Heterocercal tai)
1. Rostrum
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)
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1. Gill Arch
2. Gill Raker
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The holes are openings of sensory structures
called Amullae of Lorenzini. These sensory
structures allow the shark to detect minute
electrical currents.
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1. Gill Arch
3. Gill Arches
2. Gill Raker
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Swim bladder
Heterocercal
Homocercal
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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.
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Chordata
Animalia
Osteichthyes
Parrot fish
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1. Stomach
2. Pyloric caeca
3. Intestine
4. Esophagus
5. Stomach
6. Intestine
7. Pyloric caeca
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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