levels of organization

  1. Cell: the cell is the basic unit of structure and function of a living thing.
  2. Cells consist of a protoplasm enclosed within a membrane                        ex:Single cell , multiply cell
  3. Cells are important because you need them in your body.


Tissues are made of a group of similar cells that work together to do a specific job in the body.

is a cellular organizational level intermediate between cells and a complete organ.

Its important because cell smallest living part of any living thing If you are the plant or animal it is important because this is how your organism is organized

Organ .

Organs are made up of two or more tissues that work together to do a specific job.

Its important becausee the organ has to work with things in your body .

ex: made up of cells.  

organ system

An organ system is a group of organs working together to perform particular jobs.

ex: The human body is made up of several organ systems that work together as one unit.

Its important because large organism with a low surface ratio did not have lungs, the heart and other organs organ system then we would not keep the gas exchange rate so we would die as our cells would not survive


Sum of all cells, tissues, organs and organ systems makes an organism. An organisms is made when a group of organ systems work together.

Its impotent because all living things are organisms if you dont have organisms you can not llive .



A group of the same type of organisms all living together in the same place.


Populations living together in one area

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