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Poison Dart Frog

This lesson explores the concept of adaptability in organisms, focusing on inherited traits and structural variations that promote survival in different environments. Students will investigate examples such as the Poison Dart Frog, camouflage, mimicry, and specific adaptations like antifreeze protein in Antarctic Toothfish. We will discuss natural selection, variation, and how certain traits can provide advantages for survival and reproduction. By examining these concepts, students will gain insights into the diversity of life and the mechanisms that sustain various species.

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Poison Dart Frog

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Presentation Transcript

  1. 4:2 Students will relate adaptability of an organism in an environment to their inherited traits and structures

  2. Poison Dart Frog

  3. Darwin1820English, natural scientist • Why are organisms different? • Why are organisms similar? • Why are there so many different types of organisms?

  4. Traits that offer survival

  5. CAMOUFLAGE ? MIMICRY ? Traits that provide an advantage for survival in one environment but not other environments Predator adaptation-helps capture prey Prey adaptation-avoids predators

  6. Flies acting like bees

  7. What are these acting like? Walking stick Eastern Tiger Swallowtail Caterpillar

  8. ANTIFREEZE FISH ADAPTATIONS (traits that allow for survival): ANTARCTIC TOOTHFISH • SLOW HEARTBEAT 1@6SEC. • LIVES 40 YEARS • 200 LBS. • PROTEIN THAT ACTS LIKE ANTIFREEZE!

  9. Traits Inherited Acquired

  10. Natural selection • Some variation in inherited traits within the species • Some of these traits will give an advantage over others in surviving and reproducing • These will be more likely to have more offspring

  11. Why so many species • Increases the chance that at least some organisms adapt and survive any major changes in the environment.

  12. Artificial selection (manmade) Dog breeds Milk producers

  13. Reproductive isolation Allopatric-Geographic Sympatric-Behavior

  14. Structure and survival Buoyancy needs less structural support

  15. Structural adaptations for flight Structural Wings and hollow bones Behavioral Migration

  16. Structural adaptations Internal skeleton Exoskeleton

  17. Egg laying vs. live birth Egg has nutrients until birth Easier to lay eggs than carry that many Protects from predators Maintains constant temp. for survival

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