Question

 Define

(i) Vector

(ii) Carrier

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Answer 1

Answer:

hii

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Explanation:

(i) Vector:- It is an organism that does not cause disease itself but spreads infection by conveying pathogens from one infected person to the other acting as host. For example; mosquito with malarial parasite.

(ii) A carrier is an organism who has no symptoms of a disease but harbors the pathogen in its body and passes it on to someone else. For Example: human with HIV virus but not AIDS; or human with pathogen Salmonella typhi but not Typhoid.

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Answer 2

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Vector

A measurement or a quantity that has both size and directions.

A vector is an object that has both a magnitude and a direction. Geometrically, we can picture a vector as a directed line segment, whose length is the magnitude of the vector and with an arrow indicating the direction.

Carrier

A carrier is an infected organism capable of transmitting the disease-causing microorganisms to a healthy individual.

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