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Author Question: Humans are hosts to a number of disease-causing pathogens and parasites. Which is an example of a ... (Read 104 times)

809779

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on: Jul 8, 2018
Humans are hosts to a number of disease-causing pathogens and parasites. Which is an example of a vector?
 
  A) Dressings
  B) Food
  C) Handkerchiefs
  D) Insects

Question 2

Poisoning occurs through cumulative exposure to insecticides, herbicides, fungicides, and rodenticides. What can happen to the human body as a result of poisoning?
 
  A) Alopecia
  B) Developmental disabilities
  C) Heart disease
  D) Respiratory cancer


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mariahkathleeen

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Reply #1 on: Jul 8, 2018
Answer to Question 1

Ans: D
Vectors are animals or flying or crawling insects or other arthropods that serve as an intermediate means of transporting the infectious agent. Vehicles, such as dressings, food, and handkerchiefs, are substances that serve as an intermediate means to transport and introduce an infectious agent into a susceptible host.

Answer to Question 2

Ans: D
Poisons cause sarcomas, lymphomas, myelomas, and respiratory and prostate cancers. Air pollution can cause heart disease. Water pollution can cause developmental disabilities and alopecia.


809779

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Reply 2 on: Jul 8, 2018
Gracias!

bblaney

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Reply 3 on: Yesterday
Wow, this really help

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