Friday, March 18, 2011

Chapter 8 - The Study of Living Things and their Interactions in the Environment

Living things, or organisms, have an incredible amount of diversity.  Unicellular bacteria live in our intestines whereas multicellular blue whales swim in the oceans.  No matter the differences that separate the vast array of organisms, we share some common traits.

1) Living things are organized; the smallest unit of an organism that carries on the functions of life is a cell.

The single celled yeast, Saccharomyces cerevisiae, is used in baking bread.



Here is a picture of nearly a dozen Saccharomyces cerevisiae clumping together.  Each one of these is an organism.





In this image, pig cells connect with each other to form tissue in the pig's nose.



Billions of cells working together are the basic unit of organization that gives form to the multicellular pig.



2) Living things grow and develop



Salmon eggs


Full grown adult salmon


3) Living things respond to a stimulus



4) Living things maintain homeostasis




5) Living things use energy




6) Living things reproduce




All living things need food, water and shelter


1) Living things need food




2) Living things need water






3) Living things need shelter





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5 comments:

  1. AnonymousMarch 25, 2011 at 5:38 PM

    the two best pics were the amoeba eating the thing, and the dog stimulation & respond one. I learned one way how to train a dog.

    -Fatema Lovely 61C

    ReplyDelete
  2. Mr. Considine's Science ScholarsMarch 28, 2011 at 3:47 PM

    Great!
    - Considine

    ReplyDelete
  3. AnonymousApril 23, 2012 at 1:14 PM

    I learned that, the single celled yeast, Saccharomyces cerevisiae, is used in baking bread. I like the Beehive picture, the salmon egg picture and the growth of a mushroom

    Lauren Heng 620

    ReplyDelete
  4. Rihui ZhengApril 24, 2012 at 12:34 PM

    I like the scorpion eating the spider picture. I learned how plants create oxygen, and that all living things, even if it is not human, needs what human needs.
    -Rihui Zheng 630

    ReplyDelete
  5. Terence WongApril 30, 2012 at 4:30 PM

    I like the picture to show how to give yourself starter experience to train your dog or how to teach it something to become an instinct. I learned that yeast has a cell called saccharomyces cerevisiae and is a living organism that is an ingredient used for bread. But the bread is not considered alive since probably while baking it requires heat to prepare the bread AKA killing the cells from the heat.


    -Terence Wong 61B

    ReplyDelete