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Biological transmission differs from mechanical transmission in that biological transmission:

a. occurs when a pathogen is carried on the feet of an insect.

b. involves reproduction of a pathogen in an arthropod vector prior to transmission.

c. works only with noncommunicable diseases.

d. requires direct contact.

Answer :

Biological transmission differs from mechanical transmission in that biological transmission option B: involves reproduction of a pathogen in an arthropod vector prior to transmission.

When a pathogen reproduces inside a biological vector that spreads it from one host to another, it is said to have undergone biological transmission. The primary carriers of biological transmission are arthropods.

The fundamental distinction between mechanical and biological transmission is that during mechanical transmission, agents are simply transferred from an infected host or contaminated substrate to a susceptible host. During biological transmission, the agent develops and/or propagates within the vector.

To know more about vectors, refer to the following link:

https://brainly.com/question/9007269

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