The most costly health problem in the United States is
a. phlebitis.
b. hypertension.
c. heart failure.
d. atherosclerosis.
e. a stroke.
C
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Bacterial DNA is not compacted into an organized higher structure
a. True b. False
What does K permeability measure?
a. The amount of sucrose in the solution b. The permeability of the membrane c. The speed of the osmometer
Researchers found an increase of abnormal meiosis in mouse oocytes when the mouse facility started washing the animals’ plastic cages and water bottles in a new, alkaline detergent. The detergent had damaged the plastic, which began to leach bisphenol A (BPA). Looking at the data in this experiment, which hypothesis do the data best support?
1.glass bottles were affected by the alkaline detergent
2.damaged cages had the greatest abnormal meiosis
3.damaged bottles had the greatest abnormal meiosis (26.9%)
4.the effect of damaged cages and damaged bottles was cumulative
What mechanisms do natural killer cells use to destroy body cells that have been infected by cancer or a virus?
What will be an ideal response?