Several types of cells in the immune system engulf microorganisms via phagocytosis. 1  Neutrophils. 2  Neutrophils are abundant in the blood, quickly enter tissues, and phagocytize pathogens in acute inflammation. 3  Macrophages. 4  Macrophages are closely related to monocytes in the blood.
Snowfall in Flagstaff ranged from 5 inches to 9 inches, with 8.6 inches at Flagstaff Pulliam Airport. Official record-keeping on Flagstaff's weather began on September 9, 1898, and a 30-year period ending in 2000 has been used in the last decade to determine what is average weather-wise.
Pepper is right. In addition, the Flagstaff area drops below zero quite frequently during the winter. I live about 30 miles west of Phoenix and the other morning the thermometer in my car, which reports outside temperatures, dropped to 24 degrees at 7:00 in the morning. It was 38 at the same time this morning.