13. What is a Revenue Model and why is it important in defining your business model? Please name two types of common revenue models and provide an example for each.
<p><img alt="Clonal selection following exposure to specific antigen leads to lymphocyte activation. Using B cells to illustrate your answer, explain the events that take place during lymphocyte activation. [5 marks]
<p>Please write following program in JAVA</p><p><img alt="Create a class named MyList. It will use a Linked List of integers as its attribute. The constructor will simply create an empty list.