Tuesday, March 29, 2011

Cells Alive!!!

1) http://www.neok12.com/Cell-Structures.htm
- "Online games and puzzles" - 1 jigsaw, 1 slide
- "Watch Videos" - Pick 3 videos and watch them; summarize each one.

2) http://www.surfnetkids.com/cells.htm

3) http://www.cellsalive.com/cells/3dcell.htm

4) http://www.biology4kids.com/files/cell_main.html
- Take the quiz on cells and take the quiz on organelles

Monday, March 21, 2011

Organism Creation

You are a mad scientist that has the ability to create an organism by mixing DNA from other organisms. 
1)Name your organism
2)From what other organisms did you collect DNA from to create your own?  What characteristics does it still have?
3)Draw a picture of your creation
4)Write a description of your organism and link it to the traits that determine what it means to be alive: 1) Living things are organized, 2) Living things grow and develop, 3) Living things respond, 4) Living things maintain homeostasis, 5) Living things use energy, 6) Living things reproduce
5)In your description, tell us about how your organism acquires its “needs” i.e. food, water, shelter

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