During a six-month period, 239 cases of pneumonia occurred in a town of 300 people. A clinical case was defined as fever ≥ 39°C lasting >2 days with three or more symptoms (i. e., chills, sweats, severe headache, cough, aching muscles/joints, fatigue, or feeling ill). A laboratory-confirmed case was defined as a positive result for antibodies against Coxiella burnetii. Before the outbreak, 2000 sheep were kept northwest of the town. Of the 20 sheep tested from the flock, 15 were positive for C. burnetii antibodies. Wind blew from the northwest, and rainfall was 0.5 cm compared with 7 to 10 cm during each of the previous three years. The portal of entry for the pathogen was:.a. gastrointestinalb. skinc. respiratoryd. urinary
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Biology, 22.06.2019 00:00, tylerchitwood211
The table below shows the number of foot bones in some horse fossils. horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s
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Biology, 22.06.2019 05:30, tiffanybrown703
Identify the composition of oceanic and continental crystal rocks. in a model of earth’s interior, where would these rocks appear?
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Biology, 22.06.2019 07:00, kprincess16r
Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?
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During a six-month period, 239 cases of pneumonia occurred in a town of 300 people. A clinical case...
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