Inglise keel unit 5 answers
human unlikely to have been, bitten before / exposed to toxin or antigen;
one / a / few (immature), lymphocyte(s) / stem cell(s)
(able to bind the toxin);
these must be stimulated to divide / ref to clonal selection or clonal
expansion;
mitosis takes too long;
has no memory cells;
AVP; max 2
(d) more, antibody-secreting cells / B lymphocytes, produced;
enough / more, antitoxin produced; (idea of good yield)
faster / goes on for longer;
secondary response;
more mitosis (of antibody producing cells);
second injection of toxin would result in clonal expansion;
ref memory cells;
AVP; e.g. large dose would kill the horse max 3
annaabi.ee 
