Developers wish to build a road through an isolated area where few people have ever visited before. The proposed route is wet and warm, with many species of wild rodents and other mammals. What issues concerning disease might this route raise?
What will be an ideal response?
People will come in contact with ticks and other blood-sucking vectors and then may fall victim to some unexpected infectious diseases. Wild animals can serve as reservoirs of pathogens that can move to humans. Additionally, the human activity along the road may chase away predators that would have kept the rodent population in check. Finally, the number of species of wild mammals is a key factor in determining where new infectious diseases will emerge.
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A plant systematist aims to
a. identify and name plant species. b. classify plant species within larger groups. c. understand the evolutionary history and relationships of plant species. d. Identify and name plant species, and classify plant species within larger groups e. Identify and name plant species, classify plant species within larger groups and understand the evolutionary history and relationships of plant species.
Which of the following statements regarding the Chlamydia life cycle is incorrect?
A. Elementary bodies differentiate into reticulate bodies in the cell nucleus. B. The elementary body is the infectious stage of Chlamydia. C. Elementary bodies are released from the host cell to continue the infectious cycle. D. Reticulate bodies multiple by binary fission.
Polyploidy is an important mechanism of speciation in animals
Indicate whether the statement is true or false
Newborns' eyes are treated with an antibiotic
A) when Neisseria gonorrhoeae is isolated from the eyes. B) when the mother is blind. C) when the mother has genital herpes. D) when the mother has gonorrhea. E) as a routine precaution.