To calibrate a brimetalic stemmed thermometer, you would ___
A. keep the thermometer at room temperature and then adjust the dial to 72 F
B. insert the stem in ice water and then adjust the dial to read 32 F (0 C)
C. turn the nut until the dial reads 0 F (-18 C)
D. insert the stem in boiling water adjust the dial to read 100 F (38 C)

Witch system has the main function of the body defense

Awoman comes to your genetic counseling center because she knows that huntington disease occurs in members of her family. her paternal grandfather was afflicted, but so far her father shows no symptoms. her two great-great grandmothers on her father's side were healthy well into their 90s, and one of her great-great grandfathers died of unknown causes at 45. testing for huntington disease is extremely expensive, but she is concerned that she may fall victim to this disease and wants to plan her life accordingly. after examining her pedigree you advise her to

Aresearcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (tmv). the cell contents are left in a covered test tube overnight. the next day this mixture is sprayed on tobacco plants. we expect that the plants would ) develop some but not all of the symptoms of the tmv infectionb) develop the typical symptoms of tmv infectionc) not show any disease symptomsd) become infected, but the sap from these plants would be unable to infect other plants