Question 1
Which aquatic zone in a lake will have the highest nutrient levels and therefore the densest microbial populations?
◦ the sediment zone
◦ the benthic zone
◦ the littoral zone
◦ the limnetic zone
◦ the profundal zone
Question 2
Which of the following sets of characteristics describes the highest level of threat potential from biological weapons?
◦ a human pathogen easily produced as an aerosol and transmissible by respiratory aerosols
◦ a pathogen of livestock transmitted by contact with infected animals but not infected people
◦ a waterborne toxin that is easily introduced into public water supplies and does not replicate in humans
◦ a microbe that can be introduced into food during packaging and withstands refrigerator temperatures but not typical cooking temperatures
◦ a pathogen of wheat that could be delivered using crop dusters
Upper-Level Maps
Sea-Level Rise
The Threat of Air Pollution
The action potential
Projections of global temperature depend heavily on the level of future greenhouse gas emissions
Histone Protein Characteristics