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12-3 Amphibians
Amphibian Camoflauge <ul><li>What is camo good for? </li></ul>Hiding from predators Catching food!
What is an Amphibian? <ul><li>Examples: </li></ul>salamanders frogs toads
What is an Amphibian? <ul><li>Vertebrate </li></ul><ul><li>Ectothermic </li></ul><ul><li>Spends early life in water </li><...
What is an amphibian? <ul><li>Reproduction & Development </li></ul><ul><li>Eggs develop in the water </li></ul>salamanders...
What is an amphibian?
What is an amphibian? <ul><li>Diversity of amphibians </li></ul>salamanders Frogs and Toads <ul><li>___________ fertilizat...
Living on Land <ul><li>What is needed to live on land? </li></ul>Legs Lungs
Living on Land <ul><li>Tadpoles = same system as fish </li></ul><ul><li>Adult amphibians = 2 loops, 3 chambers </li></ul>
Adult Amphibian Heart Atria Atria O 2  in blood Not much O 2 Mixing of blood ventricle to lungs to body
Living on Land <ul><li>Movement </li></ul><ul><ul><li>Strong skeleton </li></ul></ul><ul><ul><ul><li>Frog jumping </li></u...
Amphibians are in Danger <ul><li>Why do you think amphibians are more sensitive to environmental changes? </li></ul><ul><l...
 
 
 
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12 3 Amphibians

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  • Transcript of "12 3 Amphibians"

    1. 1. 12-3 Amphibians
    2. 2. Amphibian Camoflauge <ul><li>What is camo good for? </li></ul>Hiding from predators Catching food!
    3. 3. What is an Amphibian? <ul><li>Examples: </li></ul>salamanders frogs toads
    4. 4. What is an Amphibian? <ul><li>Vertebrate </li></ul><ul><li>Ectothermic </li></ul><ul><li>Spends early life in water </li></ul><ul><li>Amphibian means: </li></ul><ul><li>Beginning of life in: ________________ </li></ul><ul><li>Adult life on _________________ </li></ul>double-life water land
    5. 5. What is an amphibian? <ul><li>Reproduction & Development </li></ul><ul><li>Eggs develop in the water </li></ul>salamanders = internal fertilization frogs & toads = external fertilization
    6. 6. What is an amphibian?
    7. 7. What is an amphibian? <ul><li>Diversity of amphibians </li></ul>salamanders Frogs and Toads <ul><li>___________ fertilization </li></ul><ul><li>Larvae look like ___________ </li></ul><ul><li>Has tail as an adult? </li></ul><ul><li>___________ fertilization </li></ul><ul><li>Larvae look like ________ </li></ul><ul><li>Has tail as an adult? </li></ul>Internal adults yes External tadpoles no
    8. 8. Living on Land <ul><li>What is needed to live on land? </li></ul>Legs Lungs
    9. 9. Living on Land <ul><li>Tadpoles = same system as fish </li></ul><ul><li>Adult amphibians = 2 loops, 3 chambers </li></ul>
    10. 10. Adult Amphibian Heart Atria Atria O 2 in blood Not much O 2 Mixing of blood ventricle to lungs to body
    11. 11. Living on Land <ul><li>Movement </li></ul><ul><ul><li>Strong skeleton </li></ul></ul><ul><ul><ul><li>Frog jumping </li></ul></ul></ul><ul><ul><ul><li>Salamander crawling </li></ul></ul></ul><ul><ul><li>Muscular limbs </li></ul></ul>
    12. 12. Amphibians are in Danger <ul><li>Why do you think amphibians are more sensitive to environmental changes? </li></ul><ul><li>What kind of things do you think can harm amphibians? </li></ul>They live in land and water eggs don’t have shells They have thin skin Destruction of habitat (swamps, forests) Pesticides and poisions in their water or air
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