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The Organization of Living Things
Transcript of The Organization of Living Things
There are fewer predators going after the organism.
2. Longer Life:
If one cell dies the organism can still function an stay alive.
Each cell has a specific job. Specializaton makes the cell more efficient. Can produce many cells. Characteristics of a Multicellular Organism The FUNCTION of a cell is the activity that the cells perform.
The STRUCTURE of a cell is the arrangement of parts in an organism. It includes the shape and location of the cell. 1st level: Cells Different organisms are made up of different numbers of cells. Cells can perform different life processes and they work like a machine.
Two types of cells: Unicellular and Multicellular The one cell has to perform all the process necessary to survive.
If the cell dies the whole organism dies.
They need fewer resources.
They can live in harsh conditions. The organism starts off as one cell.
They have a longer life than a unicellular organism.
Each cell is specialized.
Larger than unicellular organisms. 2nd : Tissues A tissue is a group of cells that work together to perform a specific job. 4 types of tissues: nerve tissues muscle tissues connective tissues protective tissues 3rd: Organs A structure that is made up of two or more tissues. examples: Stomach
It made of muscle tissues ( help digest your food).
Connective tissues (holds the stomach together)
Nerve Tissues (help sends message to the brain) 4th Level: Organ System A group of organs working together to perform a particular function is called an organ system. Cardiovascular System:
Organs and tissues that help pumps blood throughout the body. Unicellular Organisms' Organization Most unicellular organisms live in colonies. Some unicellular organisms that live in colonies are slime mold and protist. Heart, lungs, blood vessels and veins.