Question

define vector according to biology class 9 short

Answer 1

In biology, vector is any organism that is not a disease causing agent but a carrier of disease causing agent.
FOR EXAMPLE: Mosquito, Flea.

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Answer 2

In biology, a vector is a type of organism that is capable of transmitting diseases or parasites from one host to another. Vectors can be either living or non-living, and they are typically intermediaries in the transmission of diseases. They are called "vectors" because they "carry" the disease-causing agent from one host to another.

There are many different types of vectors, including insects, arachnids, and rodents. Insects, such as mosquitoes and ticks, are common vectors for diseases like malaria, West Nile virus, and Lyme disease. Arachnids, such as mites and spiders, can also transmit diseases, as can rodents, such as rats and mice.

Vectors can transmit diseases through a variety of means, including biting or stinging, as in the case of insects, or through contamination of food or water sources, as in the case of rodents. Vectors can also transmit diseases indirectly, through the transfer of faeces or other bodily fluids.

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