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The membrane attack complex (MAC) is initiated by binding of C5b to the pathogen surface, followed by addition of C6, C7, C8, and assembly of C9 proteins. This complex can contribute to microbial lysis.

B cells recognize peptides only when presented on MHC molecules.

Which types of immune cells express antigen-specific receptors? (Select all that apply)

Identify the true statements about primary and secondary immune responses. (Select all that apply)  

Allison lent Bill $100. Three months later, Bill gave Allison a total of $103.16 to pay off the loan. What rate of simple interest did Bill pay?

A $20,000 T-bill was sold at auction for $19,410.96.  The simple discount rate was 4.3%.  How long will it take for the bill to mature? Assume there are 365 days in a year.

Find the future value of $8,600 at 6.25% compounded continuously for 5 years.

NewCorp provided its CEO with a 122-day term loan with a simple interest rate of 6.7%. The CEO paid $522.51 in interest, which was calculated using the Simplified Exact Method. How much did the company loan their CEO?

A T-bill with a simple discount rate of 1.09% will mature in 26 weeks.  If the amount of the discount is $27.25, what is the face value?

(Section 3.4)  Find the best bank to obtain a student loan if Bank A is offering 5.5% compounded annually, Bank B is offering 5.4% compounded monthly, and Bank C is offering 5.25% compounded daily.