Levels of Organization      by lucas dixon

cells The cell is the basic unit of structure and function of a living thing. the  exs is blood cells skin cells brain cells.

Tissues are made of a group of similar cells that work together to do a specific job in the body. the three examples are the three examples of tissues is bone, cartilage, and blood.

Organs are made up of two or more tissues that work together to do a specific job.a heart is an organ made of all four tissues.  liver,stomach,

      An organ system is a group of organs working together to perform particular jobs    the three examples is integumentary, muscular, skeletal, respiratory.              

cells

Tissues

organs

organ system

They work with one another and form specific organ systems. Organ systems are the fourth level of organization in living things. An organ system is a group of organs working together to perform a specific function for the organism.

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