Phylum Chordata!   Class amphibia
Class amphibia!The amphibians – First vertebrates to inhabit   landStill live part of life in water – MetamorphosisAprx. 5...
Movement from water to land               What does it take to move               from water to land?               What h...
Small adaptations through        Evolution
Transition from water to landLiving on land brings different challenges– Example: movement.Amphibians are tetrapods:– “fou...
Adaptations = land livingNew adaptations forliving on land– Lungs– Ears– Four limbs with feet  and digits
CHARACTERISTICSEctothermic– Regulate  temperature from  outside sources.   • Basking in the sun   • Water temperatureVs. E...
Ectothermic: AdvantagesSlow Metabolism– Eat lessMust self warmblood enough to beactiveNot enough energyfor continued hardw...
CHARACTERISTICSRespiration: Porous skin– Allow for gas exchange  (breathing)– Must live in moist  environments to avoid dr...
REPRODUCTIONInternal sexual reproductionLay 100s of eggs– Advantage of over population of offspring?
METAMORPHOSIS     Amphibian = double life
DIGESTIONAdults: carnivores– Use sticky tongue to  trap and suck in prey– Eat anything that is  small enough to  swallow w...
SENSESGreat hearing and eyesight– Hearing is Important for  terrestrial livingFrogs can see color!Other senses…– Chemical ...
ECOLOGICAL ROLEImportant prey for:– Racoons, opossums,  birdsImportant predatorof– Mice, rats, insects
Upcoming SlideShare
Loading in...5
×

Amphibians

424
-1

Published on

Published in: Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
424
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
19
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Amphibians

  1. 1. Phylum Chordata! Class amphibia
  2. 2. Class amphibia!The amphibians – First vertebrates to inhabit landStill live part of life in water – MetamorphosisAprx. 5,000 species!Characteristics – Moist skin for gas exchange – Ectothermic – Larval stage • metamorphosis
  3. 3. Movement from water to land What does it take to move from water to land? What has to change?
  4. 4. Small adaptations through Evolution
  5. 5. Transition from water to landLiving on land brings different challenges– Example: movement.Amphibians are tetrapods:– “four footed: two sets of paired appendages that are modified as legs that can support the animal.Lungs to avoid drying out.
  6. 6. Adaptations = land livingNew adaptations forliving on land– Lungs– Ears– Four limbs with feet and digits
  7. 7. CHARACTERISTICSEctothermic– Regulate temperature from outside sources. • Basking in the sun • Water temperatureVs. EndothermicWhat would be theadvantages of both?
  8. 8. Ectothermic: AdvantagesSlow Metabolism– Eat lessMust self warmblood enough to beactiveNot enough energyfor continued hardwork
  9. 9. CHARACTERISTICSRespiration: Porous skin– Allow for gas exchange (breathing)– Must live in moist environments to avoid drying outSensitive to chemicals inthe environmentSalamanders do not have lungs andmust breath through skin
  10. 10. REPRODUCTIONInternal sexual reproductionLay 100s of eggs– Advantage of over population of offspring?
  11. 11. METAMORPHOSIS Amphibian = double life
  12. 12. DIGESTIONAdults: carnivores– Use sticky tongue to trap and suck in prey– Eat anything that is small enough to swallow whole.Does that make them activepredators or scavengers?Larva: herbivores
  13. 13. SENSESGreat hearing and eyesight– Hearing is Important for terrestrial livingFrogs can see color!Other senses…– Chemical receptors on skin– Taste buds on tongue– Nasal senses
  14. 14. ECOLOGICAL ROLEImportant prey for:– Racoons, opossums, birdsImportant predatorof– Mice, rats, insects
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×