Which of these factors result(s) in the emergence of new pathogens?
a. human behavior
b. economic development
c. international travel
d. all of the above
Answer: D
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A sterile mule is produced by mating a horse and a donkey. This is an example of reproductive isolation.
A. prezygotic B. allopatric C. postzygotic D. sympatric E. parapatric
Currently, what is the biggest threat to the Klamath-Siskiyou forest, which is an endangered ecoregion in North
America? a. nesting birds b. greenhouse gases c. rising sea levels d. fires e. logging
All of the following statements are true about mitosis except
A. spindle fibers are involved in the movement of chromosomes. B. the cells arising from the process all have half of the genetic material. C. the process of mitosis is followed by cytokinesis. D. both sexually and asexually reproducing organisms utilize the process of material
During the early stages of sporulation in Bacillus subtilis, ________ is active in the forespore and ________ is active in the mother cell.
A. ?K; ?F B. ?E; ?F C. ?F; ?K D. ?F; ?E