 
 <prompt> text: ```Di immune system na one kain system wey get plenti biological structures and processes inside ogbonge organism wey dey protect against disease. To work well well, di immune system gats detect plenty different agents wey dem dey call pathogens, from viruses reach parasitic worms, and separate dem from di organism own healthy tissue. For many species, di immune system fit dey classified into different subsystems, like di innate immune system versus di adaptive immune system, or humoral immunity versus cell-mediated immunity. For humans, di blood-brain barrier, blood-cerebrospinal fluid barrier, and similar fluid-brain barriers dey separate di peripheral immune system from di neuroimmune system wey dey protect di brain.

Pathogens fit quickly evolve and adapt, and so dem fit avoid detection and neutralization by di immune system; but, plenty defense mechanisms don also evolve to recognize and neutralize pathogens. Even simple unicellular organisms like bacteria get small small immune system, wey dey form of enzymes wey dey protect against bacteriophage infections. Other basic immune mechanisms don evolve for ancient eukaryotes and still dey inside their modern descendants, like plants and invertebrates. These mechanisms include phagocytosis, antimicrobial peptides wey dem dey call defensins, and di complement system. Jawed vertebrates, wey include humans, get even more advanced defense mechanisms, wey include di ability to adapt over time to recognize specific pathogens more efficiently. Adaptive (or acquired) immunity dey create immunological memory after one initial response to one specific pathogen, wey go lead to one better response to subsequent encounters with that same pathogen. Dis process of acquired immunity na di foundation of vaccination.

Answer dis series of questions:

1. Wetin di article dey about?
2. How dem define am?
3. Wetin e suppose do make e work well?
4. Dem dey call dem something else?
5. Epp the worm?
6. Pathogens dey change?
7. Slowly?
8. How brains dey protect?
9. Dem dey solid?
10. Wetin dem dey compose of?

Numbered answers:``` <response>: ```1. Di immune system
2. system wey get plenti biological structures
3. fit detect different different agents
4. pathogens
5. No
6. Yes
7. No
8. brain barriers dey separate di peripheral immune system from di neuroimmune system
9. No
10. blood and fluids``` 