Frogs

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Frogs

  1. 1. Frog Life Cycle Created by Esther Anguiano
  2. 2. Frogs A frog is an amphibian… cold blooded has no scales and generally returns to water to breed
  3. 3. <ul><li>Lots of eggs </li></ul><ul><li>male frog fertilizes eggs </li></ul><ul><li>single eggs </li></ul><ul><li>female frog leaves </li></ul>Spawn
  4. 4. Eggs <ul><li>Found in calm or static waters </li></ul><ul><li>Slits into 2 </li></ul><ul><li>then into 4 and then 8..etc. . </li></ul><ul><li>Takes 6-21 days to hatch </li></ul>
  5. 5. Tadpole <ul><li>Feeds on remaining </li></ul><ul><li>yolk </li></ul><ul><li>Fragile </li></ul><ul><li>sticks to floating </li></ul><ul><li>weeds or grass in </li></ul><ul><li>water </li></ul><ul><li>7-10 days-begins to </li></ul><ul><li>swim </li></ul><ul><li>(feeds on algae) </li></ul>
  6. 6. Tadpole with Legs <ul><li>6-9 weeks </li></ul><ul><li>tiny legs sprout </li></ul><ul><li>head and body are larger </li></ul><ul><li>eats insects and some plants </li></ul><ul><li>arms bulge </li></ul><ul><li>after 9 weeks tiny frog with long tail </li></ul>
  7. 7. Froglet <ul><li>A Froglet looks the same, but has a tiny tail... </li></ul>
  8. 8. …… .Frog……. “ Now these frogs will start the whole process again…finding mates and creating new froggies.”
  9. 9. Let’s Review. . . . . .
  10. 10. Works Cited University of Oregon, www.uoregon.edu /.../picturegallery/frogs.jpg April 27, 2007. The Barn Owl Trust, http://www.barnowltrust.org.uk/content_images/desktopBackground/Frog_spawn.jpg , April 27,2007. Tadpole, http://www.aecos.com/CPIE/Tadpole2.jpg , April 23,2007. Frogs, http://www.poison-frogs.nl/e0207.html , April 23, 2007. All About Frogs, http://allaboutfrogs.org/weird/general/whatisfrog.html , April 24, 2007.

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