Answer:
The answers are:
- Work team
 - Work group
 
Step-by-step explanation:
In a business environment: 
Work team refers to a group of employees that work together in a semi autonomous manner whose total performance is greater than the sum of their individual inputs. 
Work group refers to a group of employees that work together on a particular unit of an organization that share information between them and help each other with their own individual performance. 
The difference between work team and work group is that in a work team the total output increases by its members collaboration and joint work effort.