Answer :
Final answer:
Vectors are animals that carry pathogens from one host to another. They can transmit the pathogens through mechanical or biological means.
Explanation:
Animals that carry pathogens from one host to another are called vectors. Vectors can be arthropods such as mosquitoes, ticks, and flies. These vectors can transmit pathogens through mechanical transmission or biological transmission. Mechanical transmission occurs when the vector carries the pathogen on its body and transmits it to a new host through contact. Biological transmission occurs when the vector carries the pathogen inside its body and transmits it to a new host through biting.