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Fascinating Amphibians: Unique Features and Adaptations

Learn all about the diverse characteristics and intriguing adaptations of amphibians, from their strong endoskeleton to their unique respiratory systems. Discover how these creatures utilize their legs, lungs, and specialized senses for survival.

phyllis-jefferson
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Fascinating Amphibians: Unique Features and Adaptations

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  1. AMPHIBIANS HOLT BIOLOGY CH. 30 Pg. 739-750

  2. CHARACTERISTIC OF AMPHIBIANS • LEGS (most)

  3. CHARACTERISTIC OF AMPHIBIANS • LEGS (most) • LUNGS

  4. CHARACTERISTIC OF AMPHIBIANS • LEGS (most) • LUNGS • DOUBLE-LOOP CIRCULATION

  5. CHARACTERISTIC OF AMPHIBIANS • LEGS (most) • LUNGS • DOUBLE-LOOP CIRCULATION • PARTIALLY DIVIDED HEART

  6. CHARACTERISTIC OF AMPHIBIANS • LEGS (most) • LUNGS • DOUBLE-LOOP CIRCULATION • PARTIALLY DIVIDED HEART • CUTANEOUS (skin) RESPIRATION • Live on land, but must stay close to water

  7. MOVEMENT AND RESPONSE • Strong endoskeleton needed to support gravity on land

  8. MOVEMENT AND RESPONSE • Strong endoskeleton needed to support gravity on land • Good sense of hearing and sight

  9. MOVEMENT AND RESPONSE • Strong endoskeleton needed to support gravity on land • Good sense of hearing and sight • Hunting

  10. MOVEMENT AND RESPONSE • Strong endoskeleton needed to support gravity on land • Good sense of hearing and sight • Hunting • Avoid predators

  11. MOVEMENT AND RESPONSE • Strong endoskeleton needed to support gravity on land • Good sense of hearing and sight • Hunting • Avoid predators • Eye covered in third eyelid (NICTITATING MEMBRANE)

  12. MOVEMENT AND RESPONSE • Strong endoskeleton needed to support gravity on land • Good sense of hearing and sight • Hunting • Avoid predators • Eye covered in third eyelid (NICTITATING MEMBRANE) • Inner ear detects sound transmitted through TYMPANIC MEMBRANE-vibration sent through fluid, tiny sensitive hairs then to nerves

  13. RESPIRATION • Amphibians get oxygen from

  14. RESPIRATION • Amphibians get oxygen from • Skin

  15. RESPIRATION • Amphibians get oxygen from • Skin • Lungs

  16. RESPIRATION • Amphibians get oxygen from • Skin • Lungs • Mouth

  17. RESPIRATION • Amphibians get oxygen from • Skin • Lungs • Mouth • LUNGS

  18. RESPIRATION • Amphibians get oxygen from • Skin • Lungs • Mouth • LUNGS • Larval state has gills

  19. RESPIRATION • Amphibians get oxygen from • Skin • Lungs • Mouth • LUNGS • Larval state has gills • Most adults breathe with lungs

  20. RESPIRATION • Amphibians get oxygen from • Skin • Lungs • Mouth • LUNGS • Larval state has gills • Most adults breathe with lungs • Bag-like organ that allows for exchange of oxygen and carbon dioxide

  21. RESPIRATION • Amphibians get oxygen from • Skin • Lungs • Mouth • LUNGS • Larval state has gills • Most adults breathe with lungs • Bag-like organ that allows for exchange of oxygen and carbon dioxide • Great surface area (due to folds in tissue)

  22. RESPIRATION • Amphibians get oxygen from • Skin • Lungs • Mouth • LUNGS • Larval state has gills • Most adults breathe with lungs • Bag-like organ that allows for exchange of oxygen and carbon dioxide • Great surface area (due to folds in tissue) • Lower bottom jaw to draw air in, lift lower jaw to force waste gas out

  23. RESPIRATION • Amphibians get oxygen from • Skin • Lungs • Mouth • LUNGS • Larval state has gills • Most adults breathe with lungs • Bag-like organ that allows for exchange of oxygen and carbon dioxide • Great surface area (due to folds in tissue) • Lower bottom jaw to draw air in, lift lower jaw to force waste gas out • 20 times more oxygen than water

  24. RESPIRATION • SKIN (CUTANEOUS BREATHING)

  25. RESPIRATION • SKIN (CUTANEOUS BREATHING) • Skin is thin and moist

  26. RESPIRATION • SKIN (CUTANEOUS BREATHING) • Skin is thin and moist • Gases passed right through skin

  27. RESPIRATION • SKIN (CUTANEOUS BREATHING) • Skin is thin and moist • Gases passed right through skin • Mucous glands help keep skin moist

  28. CIRCULATION • More efficient than fish

  29. CIRCULATION • More efficient than fish • PARTIALLY DIVIDED HEART

  30. CIRCULATION • More efficient than fish • PARTIALLY DIVIDED HEART • SEPTUM (wall) divides top (ATRIA) of heart

  31. CIRCULATION • More efficient than fish • PARTIALLY DIVIDED HEART • SEPTUM (wall) divides top (ATRIA) of heart • Blood MIXES (oxygen rich and oxygen poor) in VENTRICLES

  32. CIRCULATION • More efficient than fish • PARTIALLY DIVIDED HEART • SEPTUM (wall) divides top (ATRIA) of heart • Blood MIXES (oxygen rich and oxygen poor) in VENTRICLES • SEE PG. 742 DIAGRAM

  33. CIRCULATION • More efficient than fish • PARTIALLY DIVIDED HEART • SEPTUM (wall) divides top (ATRIA) of heart • Blood MIXES (oxygen rich and oxygen poor) in VENTRICLES • SEE PG. 742 DIAGRAM • Ventricle contracts and sends blood to vessels of rest of body

  34. CIRCULATION • DOUBLE LOOP CIRCULATION

  35. CIRCULATION • DOUBLE LOOP CIRCULATION • See pg. 743 (compare fish to amphibians)

  36. CIRCULATION • DOUBLE LOOP CIRCULATION • See pg. 743 (compare fish to amphibians) • PULMONARY VEINS-carry oxygen rich blood from lungs to heart

  37. CIRCULATION • DOUBLE LOOP CIRCULATION • See pg. 743 (compare fish to amphibians) • PULMONARY VEINS-carry oxygen rich blood from lungs to heart • Second loop carries oxygen rich blood from heart to body

  38. CIRCULATION • DOUBLE LOOP CIRCULATION • See pg. 743 (compare fish to amphibians) • PULMONARY VEINS-carry oxygen rich blood from lungs to heart • Second loop carries oxygen rich blood from heart to body • High pressure

  39. GROUPS OF AMPHIBIANS • 3 main groups

  40. GROUPS OF AMPHIBIANS • 3 main groups • SALAMANDERS (have legs and tail)

  41. GROUPS OF AMPHIBIANS • 3 main groups • SALAMANDERS (have legs and tail) • CAECILLIAN (no legs)

  42. GROUPS OF AMPHIBIANS • 3 main groups • SALAMANDERS (have legs and tail) • CAECILLIAN (no legs) • FROGS/TOADS (legs, no tail)

  43. SALAMANDERS • Long tail

  44. MUDPUPPY

  45. NEWT

  46. SALAMANDERS • Long tail • Smooth, moist skin

  47. SALAMANDERS • Long tail • Smooth, moist skin • 400 species

  48. SALAMANDERS • Long tail • Smooth, moist skin • 400 species • Need to keep skin moist

  49. SALAMANDERS • Long tail • Smooth, moist skin • 400 species • Need to keep skin moist • Active during night

  50. SALAMANDERS • Long tail • Smooth, moist skin • 400 species • Need to keep skin moist • Active during night • Tongues that extend to capture prey

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