   Living things will have to do certain things in    order to stay alive   Animals have to move, eat and exchange gas  ...
   Organisms have developed many different    ways to accomplish this through;    ◦ Body parts – Called Stuctures    ◦ Eg...
   All organisms have to perform certain    functions in order to stay alive such as    breathing   Plants and animals h...
Some have fins
   Tentacles
   Insects have pincers
   Mammals have teeth
   Some mammals use their tongues because    they lack teeth
   Many animals will have the same structure    but it may be a tad different   On the Galapagos Islands a famous study ...
   Although these finches are of a similar    species they had different features to perform    the same task   Each of ...
   This study opened the door to the idea of    evolution and Darwinian belief of “Survival of    the Fittest”   This ex...
Unit b  - section 1.2 structure and function
Unit b  - section 1.2 structure and function
Unit b  - section 1.2 structure and function
Unit b  - section 1.2 structure and function
Unit b  - section 1.2 structure and function
Unit b  - section 1.2 structure and function
Unit b  - section 1.2 structure and function
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Unit b - section 1.2 structure and function

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Structure and Function

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Unit b - section 1.2 structure and function

  1. 1.  Living things will have to do certain things in order to stay alive Animals have to move, eat and exchange gas (breathe) Plants exchange gas and absorb nutrients
  2. 2.  Organisms have developed many different ways to accomplish this through; ◦ Body parts – Called Stuctures ◦ Eg. Humans breathe through use of lungs ◦ Grasshoppers breathe through holes in their abdomens ◦ Fish through gills ◦ Etc…
  3. 3.  All organisms have to perform certain functions in order to stay alive such as breathing Plants and animals have developed different ways to accomplish each task
  4. 4. Some have fins
  5. 5.  Tentacles
  6. 6.  Insects have pincers
  7. 7.  Mammals have teeth
  8. 8.  Some mammals use their tongues because they lack teeth
  9. 9.  Many animals will have the same structure but it may be a tad different On the Galapagos Islands a famous study by Charles Darwin compared 13 closely related species of finches to each other Can you spot the difference?
  10. 10.  Although these finches are of a similar species they had different features to perform the same task Each of the bill types worked best for the food on that section of the Islands Look at page 92 in textbook to see uses of each finch beak ◦ Pointy was for insects in bark, Parrot shaped was for fruit, similar parrot shape for nuts and seeds
  11. 11.  This study opened the door to the idea of evolution and Darwinian belief of “Survival of the Fittest” This explains that the best suited animal will thrive in that area while the least suited will die off Also called “Natural Selection”

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