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AMPHIBIANS HOLT BIOLOGY CH. 30 Pg. 739-750. CHARACTERISTIC OF AMPHIBIANS LEGS (most) LEGS (most)

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Presentation on theme: "AMPHIBIANS HOLT BIOLOGY CH. 30 Pg. 739-750. CHARACTERISTIC OF AMPHIBIANS LEGS (most) LEGS (most)"— Presentation transcript:

1 AMPHIBIANS HOLT BIOLOGY CH. 30 Pg

2 CHARACTERISTIC OF AMPHIBIANS LEGS (most) LEGS (most)

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

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

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

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

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

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

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

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

11 MOVEMENT AND RESPONSE Strong endoskeleton needed to support gravity on land Strong endoskeleton needed to support gravity on land Good sense of hearing and sight 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 Strong endoskeleton needed to support gravity on land Good sense of hearing and sight 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 Amphibians get oxygen from

14 RESPIRATION –Skin

15 RESPIRATION Amphibians get oxygen from Amphibians get oxygen from –Skin –Lungs

16 RESPIRATION Amphibians get oxygen from Amphibians get oxygen from –Skin –Lungs –Mouth

17 RESPIRATION Amphibians get oxygen from Amphibians get oxygen from –Skin –Lungs –Mouth LUNGS LUNGS

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

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

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

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

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

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

24 RESPIRATION –SKIN (CUTANEOUS BREATHING)

25 RESPIRATION Skin is thin and moist Skin is thin and moist

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

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

28 CIRCULATION More efficient than fish More efficient than fish

29 CIRCULATION PARTIALLY DIVIDED HEART PARTIALLY DIVIDED HEART

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

31 CIRCULATION More efficient than fish More efficient than fish PARTIALLY DIVIDED HEART 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 More efficient than fish PARTIALLY DIVIDED HEART 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 More efficient than fish PARTIALLY DIVIDED HEART 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 DOUBLE LOOP CIRCULATION

35 CIRCULATION –See pg. 743 (compare fish to amphibians)

36 CIRCULATION DOUBLE LOOP 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 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 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 3 main groups

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

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

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

43 SALAMANDERS Long tail Long tail

44 MUDPUPPY

45 NEWT

46 SALAMANDERS Smooth, moist skin Smooth, moist skin

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

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

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

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

51 SALAMANDERS Long tail Long tail Smooth, moist skin Smooth, moist skin 400 species 400 species Need to keep skin moist Need to keep skin moist Active during night Active during night Tongues that extend to capture prey Tongues that extend to capture prey Lay eggs in water/moist areas Lay eggs in water/moist areas

52 SALAMANDERS Long tail Long tail Smooth, moist skin Smooth, moist skin 400 species 400 species Need to keep skin moist Need to keep skin moist Active during night Active during night Tongues that extend to capture prey Tongues that extend to capture prey Lay eggs in water/moist areas Lay eggs in water/moist areas External fertilization External fertilization

53 SALAMANDERS Long tail Long tail Smooth, moist skin Smooth, moist skin 400 species 400 species Need to keep skin moist Need to keep skin moist Active during night Active during night Tongues that extend to capture prey Tongues that extend to capture prey Lay eggs in water/moist areas Lay eggs in water/moist areas External fertilization External fertilization Female picks up sperm packet and fertilizes self Female picks up sperm packet and fertilizes self

54 SALAMANDERS Long tail Long tail Smooth, moist skin Smooth, moist skin 400 species 400 species Need to keep skin moist Need to keep skin moist Active during night Active during night Tongues that extend to capture prey Tongues that extend to capture prey Lay eggs in water/moist areas Lay eggs in water/moist areas External fertilization External fertilization Female picks up sperm packet and fertilizes self Female picks up sperm packet and fertilizes self Some retain gills into adulthood (MUD PUPPIES) Some retain gills into adulthood (MUD PUPPIES)

55 CAECILIANS Burrowing amphibians (some aquatic) Burrowing amphibians (some aquatic)

56 CAECILLIAN

57 CAECILIANS Bony scales imbedded in skin Bony scales imbedded in skin

58 CAECILIANS Burrowing amphibians (some aquatic) Burrowing amphibians (some aquatic) Bony scales imbedded in skin Bony scales imbedded in skin Wormlike Wormlike

59 CAECILIANS Burrowing amphibians (some aquatic) Burrowing amphibians (some aquatic) Bony scales imbedded in skin Bony scales imbedded in skin Wormlike Wormlike Most blind Most blind

60 CAECILIANS Burrowing amphibians (some aquatic) Burrowing amphibians (some aquatic) Bony scales imbedded in skin Bony scales imbedded in skin Wormlike Wormlike Most blind Most blind Teeth capture prey (worms/insects) Teeth capture prey (worms/insects)

61 CAECILIANS Burrowing amphibians (some aquatic) Burrowing amphibians (some aquatic) Bony scales imbedded in skin Bony scales imbedded in skin Wormlike Wormlike Most blind Most blind Teeth capture prey (worms/insects) Teeth capture prey (worms/insects) Tentacle to sense chemicals given off by prey Tentacle to sense chemicals given off by prey

62 CAECILIANS Burrowing amphibians (some aquatic) Burrowing amphibians (some aquatic) Bony scales imbedded in skin Bony scales imbedded in skin Wormlike Wormlike Most blind Most blind Teeth capture prey (worms/insects) Teeth capture prey (worms/insects) Tentacle to sense chemicals given off by prey Tentacle to sense chemicals given off by prey Male deposits sperm packet into female Male deposits sperm packet into female

63 CAECILIANS Burrowing amphibians (some aquatic) Burrowing amphibians (some aquatic) Bony scales imbedded in skin Bony scales imbedded in skin Wormlike Wormlike Most blind Most blind Teeth capture prey (worms/insects) Teeth capture prey (worms/insects) Tentacle to sense chemicals given off by prey Tentacle to sense chemicals given off by prey Male deposits sperm packet into female Male deposits sperm packet into female Female guards eggs until hatched Female guards eggs until hatched

64 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS)

65 FROGS/TOADS Adults are carnivores (eat small prey) Adults are carnivores (eat small prey)

66 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue

67 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine)

68 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine) Muscular legs for power Muscular legs for power

69 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine) Muscular legs for power Muscular legs for power Frog-smooth skin, toad-bumpy skin Frog-smooth skin, toad-bumpy skin

70 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine) Muscular legs for power Muscular legs for power Frog-smooth skin, toad-bumpy skin Frog-smooth skin, toad-bumpy skin Male fertilizes eggs externally Male fertilizes eggs externally

71 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine) Muscular legs for power Muscular legs for power Frog-smooth skin, toad-bumpy skin Frog-smooth skin, toad-bumpy skin Male fertilizes eggs externally Male fertilizes eggs externally TADPOLES hatch from eggs TADPOLES hatch from eggs

72 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine) Muscular legs for power Muscular legs for power Frog-smooth skin, toad-bumpy skin Frog-smooth skin, toad-bumpy skin Male fertilizes eggs externally Male fertilizes eggs externally TADPOLES hatch from eggs TADPOLES hatch from eggs –Have gills for breathing

73 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine) Muscular legs for power Muscular legs for power Frog-smooth skin, toad-bumpy skin Frog-smooth skin, toad-bumpy skin Male fertilizes eggs externally Male fertilizes eggs externally TADPOLES hatch from eggs TADPOLES hatch from eggs –Have gills for breathing –Eat algae

74 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine) Muscular legs for power Muscular legs for power Frog-smooth skin, toad-bumpy skin Frog-smooth skin, toad-bumpy skin Male fertilizes eggs externally Male fertilizes eggs externally TADPOLES hatch from eggs TADPOLES hatch from eggs –Have gills for breathing –Eat algae –Hind legs develop

75 FROGS/TOADS 4,000 species (ANURANS) 4,000 species (ANURANS) Adults are carnivores (eat small prey) Adults are carnivores (eat small prey) Long sticky tongue Long sticky tongue Skeleton adapted for jumping (fused lower spine) Skeleton adapted for jumping (fused lower spine) Muscular legs for power Muscular legs for power Frog-smooth skin, toad-bumpy skin Frog-smooth skin, toad-bumpy skin Male fertilizes eggs externally Male fertilizes eggs externally TADPOLES hatch from eggs TADPOLES hatch from eggs –Have gills for breathing –Eat algae –Hind legs develop –METAMORPHOSIS


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