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Amphibians

Begin!. Amphibians. Liz Hancock. Learners: 5 th -6 th grade students Objectives:

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Amphibians

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  1. Begin! Amphibians Liz Hancock

  2. Learners: 5th-6th grade students Objectives: After viewing this PowerPoint, students should be able to identify what characteristics are used to classify amphibians and what some types of amphibians are, and take the quiz at the end of the PowerPoint with 90% accuracy. Environment: Classroom or computer lab with one computer per student Next slide!

  3. Indiana Science Standards Standard 4: Grouping living organisms together by similar characteristics and traits. Standard 5: Applying logically connected networks of ideas by comparing similar characteristics and different characteristics between Domain, Kingdom, Phylum, Class, Order, Family, Genus, and species. Next slide!

  4. Before You Begin Organisms: All things that are living or were once living. Home Return Next Click on the arrow to go to the next slide!

  5. MENU Click on a link below! Classification Characteristics Examples Quiz

  6. Classifying Amphibians What are amphibians? Why is this not an amphibian?

  7. A domain classifies organisms based on the way they read DNA. Guess which of these domains amphibians are classified under. Archaea Eubacteria Eukarya

  8. Correct! Amphibians are classified as Eukarya.

  9. Incorrect! Amphibians are classified as Eukarya.

  10. There are 4 kingdoms within the domain Eukarya. Which kingdom are amphibians classified under? Protista: Moving organisms that don’t fit into the other kingdoms, ex. Algae. Fungi: Organisms that eat other organisms and reproduce using spores, ex. Mushrooms, mold. Plantae: Organisms that generally don’t move and that make their own food, ex. Trees, grass. Animalia: Organisms that move and eat other organisms, ex. Fish, bear.

  11. Correct! Amphibians are classified as Animalia.

  12. Incorrect! Amphibians are classified as Animalia.

  13. There are several phyla (singular phylum) within each kingdom. The animal kingdom contains over 30 phyla. Which one of these phyla includes amphibians? Arthropoda Mollusca Nematoda Chordata Echinodermata

  14. Correct! Amphibians are classified as Chordata.

  15. Incorrect! Amphibians are classified as Chordata.

  16. The next level of classification is classes. Amphibian is the name given to the organisms in the class amphibia. Humans are in the class mammalia.

  17. CHARACTERISTICS OF AMPHIBIANS Breathing Vertebrates Fresh water Cold-blooded Tails Both living Four-legged

  18. Four Legs Animals with 4 legs are called quadrupeds. Some mammals, reptiles, amphibians, and birds are quadrupeds. Other classes do not have 4 legs.

  19. Tails Tails help fish move and allow land animals to brush away insects. Some animals use tails for balance or to communicate with other animals. Humans have tails before they are born.

  20. Reproduction Frogs and toads drop sperm into the female’s body through external fertilization. Most amphibians lay their eggs in water. The newborns then grow and change from only aquatic to both aquatic and terrestrial.

  21. Fresh Water Most amphibians cannot live in salt water, because it would actually draw water out of the organism and into the surrounding saltwater. The organism would eventually dehydrate and die.

  22. LAND AND WATER? Amphibian means both living. They’re given this name because they live on land and in water. Most amphibians begin their lives in water and then begin to live on land as they grow up.

  23. COLD-BLOODED Cold-blooded means amphibians get their heat from the outside environment. Their bodies don’t control their internal heat like human’s bodies do.

  24. LUNGS OR GILLS? Gills are slits in the side of an organism that allow it to take in water for oxygen. Young amphibians use gills to breathe, but most older ones have pores in their skin to get oxygen.

  25. VERTEBRATES Vertebrates are chordates that have back bones or spinal columns. Vertebrate literally means having joints. A vertebra is an individual bone that makes up the spinal column. Humans are vertebrates, too!

  26. Types of Amphibians Western Spadefoot Toad Fire Salamander Golden Poison Dart Frog

  27. Physical Appearance Black with yellow spots or stripes, shades or red or orange. Small, shiny, yellow-orange, grow to 5 cm; females are larger and dark olive in color. Smooth skin, pale gold eyes, green or gray skin, 3.8 to 7.5 cm long.

  28. Defense Mechanisms Hides in leaves and mossy tree trunks. Live underground, come up to mate. Nocturnal.

  29. Eating Insects, spiders, earthworms, slugs, small newts, and young frogs. Unknown. Unknown.

  30. Reproduction Deposit eggs in clean, small brooks. Males fight to gain female’s attention. Eggs are laid in seasonal water catchments about 228 at a time. They hatch into tadpoles after 2 months. Unknown.

  31. QUIZ

  32. 1. Fire Salamanders Reproduce By….. A. Eggs hatching into tadpoles after 2 months. B. Depositing eggs in clean small brooks. C. Males fighting to gain the female salamander’s attention. D. Laying eggs in seasonal water catchments.

  33. CORRECT!! Fire Salamanders reproduce by depositing eggs in clean, small brooks.

  34. INCORRECT Fire Salamanders reproduce by depositing eggs in clean, small brooks.

  35. 2. True or False. Amphibians live in salt water. TRUE FALSE

  36. CORRECT!! Amphibians live in fresh water.

  37. INCORRECT Amphibians live in fresh water.

  38. 3. Slits in the side of an animal that allow it to take in water for oxygen are called…. Gills Skin Lungs Fins

  39. CORRECT!! Gills are slits in the side of an animal that allow it to take in water for oxygen.

  40. INCORRECT Gills are slits in the side of an animal that allow it to take in water for oxygen.

  41. 4. True or False. Amphibians are in the class mamalia. TRUE FALSE

  42. CORRECT!! Amphibians belong to the class amphibia. Humans belong to the class mamalia.

  43. INCORRECT Amphibians belong to the class amphibia. Humans belong to the class mamalia.

  44. 5. What type of reproduction do frogs use? A. Warm-blooded B. Cold-blooded C. External fertilization D. Internal fertilization

  45. CORRECT!! Frogs use external fertilization to reproduce.

  46. INCORRECT Frogs use external fertilization to reproduce.

  47. Nice job! I hope you learned a lot about amphibians!

  48. CREDITS Enclosed information is generally accepted by biologists. Pictures taken from Wikipedia.com Background image taken from www.gykg.iiiii.com

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