What is the function of an organ system?
1. to organize a group of similar cells
2. to control movement in internal organs
3. to be a basic unit of organization with bodies
4. to work together to do a specific job
The function of an organ system is to work together to do a specific job.
Which option is a main type of muscle tissue?
1. spongy bone
2. blood vessels
3. skin
4. cardiac