Term
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Definition
| Lamprey(parasites) and hagfish (scavengers) |
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Term
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Definition
- bony fish
o ray-finned
§ most fish are this type
§ fins supported by bony structures
o lobe-finned
§ fins are long, fleshy, muscular lobes
o lungfish
§ thought to be ancestors of amphibians |
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Term
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Definition
| cartilage fish (sharks and rays) |
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Term
| cartilage fish (sharks and rays) |
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Definition
- adapted for predatory lifestyle
- pectoral fins do not move…this increases speed and stability
- cartilage skeletons
- special scales that feel like sandpaper
- no operculum
- no swim bladder
- most have live births |
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Term
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Definition
· gills
· backbone
· paired fins
· single loop circulation
· 2-chamber heart |
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Term
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Definition
· water flows over fills as the fish swims
· O2 diffuses from the water and into in the blood
· Operculum covers gills |
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Term
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Definition
· fish fertilize eggs externally
· fry – baby fish |
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Term
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Definition
vomarine and maxillary teeth
Internal nares (nostrils) for breathing
Eustachian tubes: equalize pressure
Glottis: tube leading to the lungs
Esophagus: tube leading to the stomach
Tongue: front attachment
Tympanic membrane: eardrum
Nictating membrane: clear eyelid
Peritoneum: membrane that covers internal organs
Stomach: breaks down food
Liver: makes bile (aids in digestion)
Gall bladder: stores bile
Pancreas: makes insulin (aids in digestion)
Small intestine: (duodenum and ileum) absorbs nutrients from food
Large intestine: collects waste, absorbs water
Cloaca: “sewer’: eggs, sperm, urine and feces enter this area
Spleen: part of circulatory system, stores blood
Kidneys: filter blood
Ureters: carry urine from kidneys to bladder
Testes: make sperm
Ovary: make eggs
Urinary bladder: stores urine |
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Term
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Definition
· Kingdom Animalia
Phylum Chordata
Subphylum Vertebrata
Class Amphibian
· Orders à Anura (frogs and toads)
Urodela (salamanders)
Apodia (caecilians) |
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Term
| Characteristics of amphibians |
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Definition
· legs
· lungs
· double-loop circulation
· 3 chamber heart
· Cutaneous (skin) respiration
· Metamorphosis egg à tadpole à frog
· Tied to water….eggs laid in water |
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