Can you help me with my science hw you basically have to find the definition of the words

1. a cell that can become many different cell types
2. a group of similar cells that work together to carry
out a specific task
3. a group of different organs that work together to
complete a series of tasks
4. the process by which cells becomes different types
of cells
5. a group of organ systems that carry out all the jobs
needed for their survival
6. a group of different tissues working together to
perform a particular job

A. cell differentiation
B. stem cell
C. tissue
D. organ
E. organ system
F. organism