Differentiate between the following and provide examples for each:
$(a)$ Innate and acquired immunity
$(b)$ Active and passive immunity

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(N/A) Differences between Innate and Acquired Immunity:
Innate ImmunityAcquired Immunity
$(1)$ It is present from birth.$(1)$ It develops after birth upon exposure to pathogens.
$(2)$ It provides non-specific defense barriers.$(2)$ It involves specific $T$-cells,$B$-cells,and antibodies.
$(3)$ Example: Skin,mucous membranes,fever.$(3)$ Example: Vaccination,immunity after recovery from disease.

$(b)$ Differences between Active and Passive Immunity:
Active ImmunityPassive Immunity
$(1)$ Host produces antibodies in response to antigens.$(1)$ Ready-made antibodies are directly introduced.
$(2)$ It is slow but long-lasting.$(2)$ It is fast but temporary.
$(3)$ Example: Natural infection or vaccination.$(3)$ Example: Colostrum $(IgA)$,anti-tetanus serum.

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Define and explain: Innate immunity and Acquired immunity.

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$A$. Physical barrier$i$. Skin
$B$. Physiological barrier$ii$. Interferons
$C$. Cellular barrier$iii$. Mucus coating
$D$. Cytokine barrier$iv$. Saliva in mouth

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