1. describe the role of
sanitary conditions in
preventing the
spread of pathogens.

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Plant species a has a diploid number of 12. plant species b has a diploid number of 16. a new species, c, arises as an allopolyploid from a and b. the diploid number for species c would probably be a) 12. b) 14. c) 16. d) 28. e) 56.

What was the impact of the concordat of worms?