Levels of Biological Organization

[Erin Nash]

To introduce you to the levels of biological organization, last time you went outside and attempted to find pictures for as many levels of biological organization you could.

Those levels are as follows -->
atoms
molecules
organelles
cells
tissues
organs
organ systems
organisms
species/population
community
ecosystem
biosphere

For each of these levels on your post, include a picture, and also include a brief description of that level on your post. For the levels that you could not actually find pictures of, be sure to include a picture you had found on the internet.

[Marcy Withrow]

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Photo by: http://startswithabang.com/wp-content/uploads/2008/05/atom-with-ele...

An Atom is the smallest component of life; it begins the levels of organization.

Photo by: http://www.physicalgeography.net/fundamentals/images/compounds_mole...

A molecule is the simplest structure of an element or compound. It's more than one atom bonded together.

Photo by: http://scienceblogs.com/clock/upload/2006/11/a2%20animal%20cell.png

An organelle is a specialized subunit with in a cell. It has it's own function to make the cell run. An example would be the picture above. Look at the Nucleus and the Mitochondrion, those are organelles.

Photo by: http://www.enchantedlearning.com/subjects/animals/cell/anatomy.GIF

Cells are the smallest unit of an organism. It can from to create tissue. It also can be independent to from life. This is where life starts.

Photo by: http://www.emc.maricopa.edu/faculty/farabee/BIOBK/stomTS.gif

Tissue is a group of cells having a similiar structure or function. Tissue is found in an organ and organism, found in the picture above.

Photo by: http://www.nlm.nih.gov/medlineplus/ency/images/ency/fullsize/19574.jpg

An organ is a tissue that creates a specific function to help the body. Such as the stomach and heart.

Photo by: http://www.jlhahnconsulting.com/prepsteps1/anm1s2_3.jpg

An organ system is a group of organs that work together to perform a task. Above are some examples of an organ system.

Photo by: Marcy Withrow (ME)

An organism is a living thing that can act independently on it's own. For example, I have my pet cat, Moe, in the picture. Moe is alive and can be independent.

Photo by: Marcy Withrow (ME)

Species are a specific group of living organisms; they can breed with eachother. For example, wild turkeys. They can breed with eachother and they are a specific organism.

Photo by: Marcy Withrow (ME)

A community consists of at least two species that are interdependent. For example, I have my Brother and Grandma with our cats. The cats depend on my Grandma to feed them and she depends on them for affection.

Photo by: http://www.mghs.sa.edu.au/Internet/Faculties/Science/Year10/Pics/ec...

An ecosystem is a community interacting with eachother in a certain area. Above I have a picture or Artic/Ocean. The Organism live and interact with eachother.

Photo by: http://people.hofstra.edu/geotrans/eng/ch8en/conc8en/img/biosphere.gif

A biosphere is the sum of all ecosystems. Basically, it's Earth, the whole thing.

[Terra Younger]

-This is what I found of an atom.

-This is a molecule.

-This is a cell... with organells individually labeled.

-These are cells found on a leaf. (I did not take this)

-This is human skin, or tissue rather.

-This is a human brain, representing an organ.

-This is a coral polyp, labeled are it's seperate organs; therefore, an organ system.

-This is a picture of Taylor Woodruff (hand) holding a cricket. The cricket represents a species.

-You can't see it very well, but this is a picture of a whole bunch of water bugs. The water bugs represent a population, community and ecosystem.

- Lastly, I have a biosphere.

[Terra Younger]

Umm... my biosphere magically placed itself 1st... It's suppose to be last... But you understand ;)