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3. A is make of a group of similar cells working together.
5. An is made up of different tissues working together to do a special job.
7. An is made up of many organs working together to do a special job.
9. An is a living thing that carries out its own life activities.
1. A is the smallest unit of structure and is also known as the basic building block of life.
An example of a cell is a nerve cell.
An example of a tissue is a organ system.
An example of an organism is a human.
An example of an organ system is the digestive system.
An example of an organ is a cell.
