The oak tree fungal pathogen, Phytophthora ramorum, has migrated 800 kilometers in 15 years. West Nile virus spread from New York State to 46 other states in 5 years. The difference in the rate of spread is probably related to _________. A. the lethality of each pathogen B. the mobility of their hosts C. the fact that viruses are very small D. innate resistance

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23-08-2022
Biology

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The oak tree fungal pathogen, Phytophthora ramorum, has migrated 800 kilometers in 15 years. West Nile virus spread from New York State to 46 other states in 5 years. The difference in the rate of spread is probably related to _________. A. the lethality of each pathogen B. the mobility of their hosts C. the fact that viruses are very small D. innate resistance

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Tutorconsortium365 Tutorconsortium365 · Answer 1 · 2022-08-25T17:43:59+02:00

Correct answer is B. The oak tree fungal pathogen, Phytophthora ramorum, has migrated 800 kilometers in 15 years. The difference in the rate of spread is probably related to the mobility of their hosts

Why there is difference in the rate of spread ?

The differential in the pace of dissemination is likely caused by their hosts' mobility. Natural host and parasite populations are frequently fragmented and unevenly dispersed, leaving certain areas of a host species' range free of a particular infection. The spread of a particular parasite is significantly influenced by the hosts' movement.

What is West Nile virus ?

West Nile fever is brought on by the single-stranded RNA virus known as the West Nile virus (WNV). It belongs to the same genus as the Zika virus, dengue virus, and yellow fever virus, Flavivirus, and is a member of the family Flaviviridae. Mosquitoes, primarily Culex species, are the main vectors of the virus. Since birds are the major hosts for WNV, the virus continues to spread via a "bird-mosquito-bird" cycle. The virus shares genetic ancestry with the family of viruses that cause Japanese encephalitis.

To learn more about West Nile virus from the given link:

https://brainly.com/question/1262992

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