Through the brain has very good blood supply, there is something called as blood brain barrier. There are tight junctions in the cappilaries and from outside a layer of connective tissue cells. So that bacteria cannot pass through this barrier. So meningitis is relatively rare disease.
Sickle Cell Disease, Acquired Immune Deficiency Syndrome (AIDs), Gonorrhoea and Haemophilia are some diseases that the body cannot defend itself against. :D
they defend against infection and viruses
The immune system.
Camouflage is the change of the skin color of an organism in order to defend itself from its enemy.
1) Physical barrier. 2) "Normal bacteria" will resist new-comers.
immune system
no one knows
Ability of the body to defend itself from being afflicted by diseases
It is the body's immune system.
Sickle Cell Disease, Acquired Immune Deficiency Syndrome (AIDs), Gonorrhoea and Haemophilia are some diseases that the body cannot defend itself against. :D
I asume that a killer whale defends itself with its extremly large body. -MMMORELAND
it usually feeds on children and old people
meningitis is inflamation of meninges surrounding the brain, but encephalitis is inflamation of the brain itself
A puffer fish, when threatened, will inflate itself until it is spherical to defend itself against predators.
The immune system produces antibodies to defend against allergens.
A flower may have thorns such as a rose does enabling it to passively defend itself .
it kill itself