Now lets move on to factorizations that may require two or more techniques. In Exercises 1780, factor completely, or state that the polynomial is prime. Check factorizations using multiplication or a graphing utility. 3x3 24x2 48x
Lectures 24 & 25 Animal Immune Systems Overview Innate vs. acquired immunity Acquired immunity and immunological memory o Complex interactions among various cell types, including B and T cells Antigen receptors/ antibodies MHC proteins o Genetic shuffling as a source of variation o Clonal selection enhances immune response o Humoral and cell-mediated immune response Immune Systems Are Necessary for Multicellular Animals (and Plants) Internal environment of organism good for cells & cellular processes: lots of nutrients, etc. Pathogens: foreign invaders that try to co-opt organismal resources; cause disease o Prokaryotes o Eukaryotes: protists & fung
