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20 Cards in this Set
- Front
- Back
Fishes are_____vertebrates |
Aquatic |
|
What type of fish do not have scales |
Cartilaginous and jawless |
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What two features were important developments during the evolution of fishes |
Jaws and fins |
|
Which period is called the age of fishes |
Devonian |
|
Jaws allow fish to do what |
Eat |
|
Paired find gave fish more control over what |
Movement in water |
|
The two major types of fish have skeletons made of what |
Bone and cartilage |
|
Name a parasitic fish |
Lamprey |
|
Food is processed in finger like pouches called what |
Pyloric ceca |
|
Gills are made of feathery structures called what |
Filaments |
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What structure covers and protects gills |
Operculum |
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What two chambers are in a fishes heart |
Atrium and ventrical |
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_____are excretory organs that filter wastes from the blood |
Kidneys |
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What helps fish to sense vibrations in the water |
Lateral line system |
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What structure keeps a fish from sinking |
Swim bladder |
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Fish whose eggs hatch outside of the moms body are called what |
Dioecious |
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Fish whose eggs stay within the mom is called what |
Viviparous |
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Names the three groups of fish |
Jawless cartilaginous and bony |
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What are the two classes of jawless fish |
Hagfish and lamprey |
|
What jawless fish secretes incredible amounts of slime |
Hagfish |