"ഗവൺമെന്റ് എച്ച്.എസ്.എസ് മൈലച്ചൽ/അക്ഷരവൃക്ഷം/Immunity" എന്ന താളിന്റെ പതിപ്പുകൾ തമ്മിലുള്ള വ്യത്യാസം

ഗവൺമെന്റ് എച്ച്.എസ്.എസ് മൈലച്ചൽ/അക്ഷരവൃക്ഷം/Immunity (മൂലരൂപം കാണുക)

19 ബൈറ്റുകൾ കൂട്ടിച്ചേർത്തിരിക്കുന്നു , 16 ഏപ്രിൽ 2020

തിരുത്തലിനു സംഗ്രഹമില്ല

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തിരുത്തലുകൾ

@@ വരി 4: / വരി 4: @@
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        All living organisms are continously exposed to substances that are capable of causing them harm. Most organisms protect themselves against such substances in more than one way with
-  physical barriers,for example or with chemicals that repel or kill invaders.Animals  with backbones called vetebrates,have these types of general protective mechanisms,but they also have a more advanced
+  physical barriers,for example or with chemicals that repel or kill invaders.Animals  with backbones called vetebrates,have these types of general protective mechanisms,but they also have a                   more advanced  protective system called the immune system.
-protective system called the immune system.
 The immune system is a complex network of organs containing cells that recognize foreign substances in the body and destroy them.It protects vertebrates against pathogens or infectious agents such as viruses,bacteria,fungi,and other parasites.The human immune system is the most complex.
                  Among the many uncertainties that remain about covid-19 is how the human system responds to infections and what that means for the spread for the disease