I think it is either organ, tissue or digestive system.
organ system
A tissue
Tissue. Tissue---Organs---Organ Systems---Organisms.
A group of similar cells carrying out a common function is known as tissue.
carrying oxygen to the body.
Tissue
A group of cells doing the same job are known as a tissue, not a muscle.
In the body -- A group of similar cells forms tissue; similar tissue forms organs. A group of cells and tissues with the same job is called an organ.Regarding people - A group of people who have the same job is called a team.
The job of a blood cell is to pick up oxygen from the lungs and carrying oxygen to the other cells in the body.
When there is a group of cells that work together to do a common job that is called a tissue. A group of tissues that do a common job is an organ, and a group of organs that do a job is called an organ system.
cell make organs through these steps 1. cell 2. tissue- group of cell carrying out a specific function 3. organs- group of tissues carrying out a specific function so as you can see cells form organs through these steps.
This group of cells is called a tissue.