One of the treatments for COVID-19 is to use plasma from a patient that has recovered to treat a sick person.  Which mechanisms of acquired immunity does this treatment use? Does this type of treatment lead to the development of herd immunity? Why or why not?

 When dissolved in water, NaOH behaves as

Which of the compounds H NO2 , Ba(OH)2, FrOH, and H Br behave as acids when they are dissolved in water?

The _______ of an antibody binds the antigen.

Describe Grades I-IV IVH in neonates (** must DEFINE and give SONOGRAPHIC APPEARANCE of each**): Grade I Grade II Grade III Grade IV

Lipopolysaccharide is an _______ pyrogen.

A _______ occur when a superantigen over activates T cells and leads to an excessive inflammatory response.

Antibodies are an important component of the adaptive immune response, however they do not destroy pathogens themselves. Explain the action of antibodies.

Where do the majority of intracranial hemorrhages originate?

What structure is responsible for the formation and regulation of CSF?