fish danielle crise chris menchio. internal diagram
TRANSCRIPT
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Fish DANIELLE CRISE
CHRIS MENCHIO
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Internal Diagram
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Nervous System
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Organs
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Three Classes of Fish
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Class Agnatha
Nickname: Jawless Fish Examples: Lamprey, Hagfish General Traits: Lack paired fins and bones
Lack Jaw Attach to prey with disk shaped sucker
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Hagfish Traits
Bottom dwellers Salt water No jaws Tie themselves into knots- hide from predators
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Lamprey Traits
Lack jaws Sucker mouth
Feed off body fluids of prey
Live in salt and fresh water
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Class Chondrichthyes
Nickname: Cartilaginous fish Examples: Sharks, Rays, and Skates General Traits:
Skeleton made of cartilage Jaws Paired fins Predators Internal fertilization
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Shark Traits
6-20 rows of teeth 20,000 teeth in a lifetime Lots of lipids Well-developed sense organs Constantly swim
Lack air bladder
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Ray Traits
Flat bodies Bottom dwellers Long, whip-like tails Live young Diamond shaped bodies
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Skates Traits
Flat bodies Bottom dwellers Long, whip-like tails Lay eggs Triangular body
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Class Osteichthyes
Nickname: Bony fish Examples: Trout, bass General Traits:
Jaws Bony skeleton Paired fins
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Ray Finned Fish Traits
Common fish Air bladder Scales- cycloid
Camo for protection in water
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Lobe Finned Fish Traits
Lunged fish: Gills and lungs Shallow ponds
Coelacanth fish: Thought to be extinct Lack rays Fleshy skin
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Fish Adaptations for Life in Water
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External Diagram
nostrileye
mouth
gill
Pelvic fin
Pectoral finAnal
fin
Caudal fin
Lateral line
Dorsal fins
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Adaptations
Stream-line body Allows them to move faster through water
Muscular tail Rapid movement
Paired Fins Move through water
Gills Take in O2 release CO2
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Gill Structure
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Adaptations Continued
Dorsal Fin Increases stability
Secretes Mucus Reduces friction
Lateral Line Detects vibrations
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Fins and their functions
Caudal: For forward movement of fish
Dorsal: Keep fish upright and stable
Anal: Keeps fish moving in straight line
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Fins and their functions continued
Pelvic: Used for stopping and moving up and down
Pectoral: Used for stopping and moving up and down
Scales: Protection Prevent loss or gain of water
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Nervous System
Purpose: Transmit electrical impulses from brain to rest of body
Brain Spinal cord Nerves Sense organs Eyes nose
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Reproductive System
Purpose: To produce viable sex cells
Bony fish: External fertilization
Cartilaginous fish: Internal fertilization
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Digestive System Passageway
Mouth (entrance for food) Pharynx (connects mouth to esophagus) Esophagus ( passageway for food- leads to stomach) Stomach ( starts digestion)
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Digestive System Passageway
Pyloric ceca ( 2nd part of digestion) Intestine( last part of digestion) Anus ( exit for solid waste)
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Additional organs of digestion
Liver (Makes Bile) Gall Bladder ( stores bile until needed in intestine) Pancreas ( makes insulin)
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Pathway of Blood
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Circulatory System
Purpose: To deliver oxygen and food Closed circulatory system Low efficiency Clean and dirty blood mixes
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Pathway of blood
1. Heart pumps blood through arteries
2. Blood picks up O2 and releases CO2
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Pathway of blood
3. Gills to body tissues- nutrients and waste are exchanged
4. Blood goes back to heart through veins
2 chambered heart
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Fish Classification
Kingdom: Animal Phylum: Chordates Subphylum: Vertebrates Classes:
Jawless Fish (Agnatha) Cartilaginous Fish (Chondrichthyes) Bony Fish (Osteichthyes)
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Pathway thru Heart
Deoxygenated blood returns from body to sinus venosus
To large atrium To muscular ventricle To conus/bulbus arteriosus To aorta
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Activities
http://kr021.k12.sd.us/zoology/fish%20web.htm
http://www2.sd35.bc.ca/uconnect/salmon/DissectionGame.html
http://quizlet.com/18408424/flashcards
http://quizlet.com/53107996/test
http://quizlet.com/53107996/scatter
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Videos
https://www.youtube.com/watch?v=pNZQEmGp11k https://www.youtube.com/watch?v=37wCrU4psIw https://www.youtube.com/watch?v=5HMp-GXjHtg https://www.youtube.com/watch?v=zRQIXX-IF7Q https://www.youtube.com/watch?v=gz7Ku_HFNko
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Works Cited
Notes Google images
• Website Title: Quizlet
• Article Title: Quizlet
• Date Accessed: January 05, 2015
• Website Title: YouTube
• Publisher: YouTube
• Date Accessed: January 07, 2015