Term
| Examples of superclass Agnatha |
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Definition
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Term
| Examples of class Chondrichthyes |
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Definition
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Term
| Examples of class Osteichthyes |
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Definition
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Term
| What are characteristics of both hagfish and lamprey? |
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Definition
Jawless
eel-like bodies
poikilothermic
no scales or fins
2 champered heart
gills |
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Term
| What fish have no scales and are poikilotherimc? |
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Definition
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Term
| What fish have eel like bodies? |
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Definition
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Term
| How many chambers do the hearts of hagfish and lamprey have? |
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Definition
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Term
| Do hagfish and lamprey have gills? |
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Definition
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Term
| In what unusual way does the hagfish eat? |
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Definition
| It enters any orifice and eats the organism from the inside out, leaving bones and skin |
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Term
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Definition
| It latches onto the side of an organism and uses its suction mouth and teeth (teeth cut through scales on side of fish) to absorb body fluid and blood. |
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Term
| Are all lamprey parasitic? |
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Definition
| Technically no, they are not all parasitic – that is only because some freshwater lampreys do not feed as adults, but live on reserves. |
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Term
| What are some economic contributions of members from the class Agnatha? |
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Definition
lampreys are used as fish bait and are a delicacy in other countries.
Hagfish will damage fish caught in a net or a line. |
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Term
| What are shark dorsal fins used for? |
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Definition
| They keep the shark upright |
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Term
| What are shark caudal fins used for? |
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Definition
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Term
| What are shark pectoral and pelvic fins used for? |
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Definition
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Term
| What are shark clasper fins used for? |
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Definition
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Term
| What are the 5 types of shark fins? |
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Definition
| dorsal, caudal, pectoral, pelvic, clasper |
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Term
| How is the sex of a shark determined? |
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Definition
| If there are clasper fins, the specimen is a male. |
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Term
| What was the original function of the spiracle? |
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Definition
| To provide oxygenated blood directly to the eye and brain through a separate blood vessel. |
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Term
| What are some economic contributions of sharks? |
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Definition
| fertilizer, food, hides used for leather and abrasives |
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Term
| What is the function of the cloaca? |
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Definition
| common chamber where kidneys and genitals empty into |
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Term
| Describe a shark's lateral line sense organ. |
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Definition
| sensory system composed of nematocysts which helps detect and locate objects in the water – also used for camouflage |
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Term
| Describe a shark's Ampullae of Lorenzini sense organ. |
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Definition
| gel-filled pores on the face which look like a 5 o’clock shadow. Allows shark to sense bioelectric fields in the water from other animals |
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Term
| What is the name for shark scales? |
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Definition
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Term
| Describe a shark's scales. |
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Definition
| Backward pointing – covered by enamel for protection. They look like diamonds or an arrow. |
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Term
| What problems would result if a shark did not have a liver? |
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Definition
| It would not produce the oil that allows them to maintain buoyancy in the water. |
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Term
| What problems would result if a shark did not have a rectal gland? |
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Definition
| It would not be able to regulate the additional salt obtained from food and the water |
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Term
| What is the function of the gall bladder? |
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Definition
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Term
| What is the function of the pancreas? |
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Definition
| secretes digestive enzymes |
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Term
| Name the membrane of the shark that lines the coelom. |
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Definition
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Term
| Name the membrane of the shark that covers the internal organs |
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Definition
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Term
| Name the membrane of the shark that anchors the intestine down |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| live egg-producing. Egg develops inside the mother but gets no nourishment from the mother |
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Term
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Definition
| alive-producing, placental attachment to mother |
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Term
| How do the bodies of saltwater and freshwater fish deal the type of water they live in? |
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Definition
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Term
| Name two fish that migrate |
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Definition
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Term
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Definition
| zig-zag muscles used for locomotion |
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