Life Science Notes: Ch. 12; Vertebrates
Life Science Notes: Ch. 12; Vertebrates
Chordate Characteristics...Notochord at some stage of life cycle...Nerve chord running down the back...Gill slits at some ...
Vertebrate Characteristics  All vertebrates are also chordates...  All have backbone and  An internal skeleton.  Jawless f...
Temperature RegulationEctotherms--bodytemperaturedetermined byenvironment; Fish,Amphibians, Reptiles.
Temperature Regulation, cont. Endotherms--body temperature controlled by heat waste from metabolism in body, regardless of...
"   Fish    Ectothermic.    2-chambered heart.    Gills, scales, & fins.-   Reproduce sexually.    External fertilization.
AmphibiansSlimy skin, must have water & land.Breath through gills, skin, lungs.Adult with 3-chambered heart &Two loops.Com...
ReptilesSkin, kidney, and egg adapted to life on land.Thick scaly skin to conserve water.Amniotic egg withInternal membran...
Amniotic egg
BirdsSkin with feathers & true flight.No teeth.Hollow bones.Four-chambered heart &two loops.Oxygen-rich & oxygen-poorBlood...
Birds, cont. Endothermic homeotherms with parental care.
Mammals4-chambered,2-looped heart.Skin with hairMammary glands & milk.Most have live young, no egg.Teeth reflect diet.Diap...
3-groups of Mammals Monotremes--egg layers Marsupials--baby brooders Placentals--live young
Mammal Diversity
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Structure and function of Chordates; Vertebrates, Jawless fishes, Fish, Amphibians, Reptiles, Birds, & Mammals

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  • Keynote ch. 12 vertebrates(2).key

    1. 1. Life Science Notes: Ch. 12; Vertebrates
    2. 2. Life Science Notes: Ch. 12; Vertebrates
    3. 3. Chordate Characteristics...Notochord at some stage of life cycle...Nerve chord running down the back...Gill slits at some stage.
    4. 4. Vertebrate Characteristics All vertebrates are also chordates... All have backbone and An internal skeleton. Jawless fish Sharks Fish Amphibians Reptiles Birds Mammals
    5. 5. Temperature RegulationEctotherms--bodytemperaturedetermined byenvironment; Fish,Amphibians, Reptiles.
    6. 6. Temperature Regulation, cont. Endotherms--body temperature controlled by heat waste from metabolism in body, regardless of environment temp; Sweat glands, Feathers & Fur; Birds & Mammals
    7. 7. " Fish Ectothermic. 2-chambered heart. Gills, scales, & fins.- Reproduce sexually. External fertilization.
    8. 8. AmphibiansSlimy skin, must have water & land.Breath through gills, skin, lungs.Adult with 3-chambered heart &Two loops.Complex life cycle with larva/tadpoleSexual reproductionExternal fertilization in waterEctothermic
    9. 9. ReptilesSkin, kidney, and egg adapted to life on land.Thick scaly skin to conserve water.Amniotic egg withInternal membranes to conserve water.Lizards, snakes, crocs & gators, turtles.
    10. 10. Amniotic egg
    11. 11. BirdsSkin with feathers & true flight.No teeth.Hollow bones.Four-chambered heart &two loops.Oxygen-rich & oxygen-poorBlood do not mix.Great need of oxygen for flight.
    12. 12. Birds, cont. Endothermic homeotherms with parental care.
    13. 13. Mammals4-chambered,2-looped heart.Skin with hairMammary glands & milk.Most have live young, no egg.Teeth reflect diet.Diaphragm muscle to aid breathing.Walk, swim, glide, & burrow.
    14. 14. 3-groups of Mammals Monotremes--egg layers Marsupials--baby brooders Placentals--live young
    15. 15. Mammal Diversity

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