Acid precipitation is due to the addition of ________ to the atmosphere.
Fill in the blank(s) with the appropriate word(s).
sulfur
Acid precipitation is due to the addition of sulfur to the atmosphere.
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Meningitis can be caused by a number of microbes, and the causative organism is often identified by microscopic observation of the cerebrospinal fluid. Identify the mismatch in the following list of organisms and the description of the microscopic observation.
A. Listeria monocytogenes; gram-negative coccobacillus with flagella B. Streptococcus pneumoniae; gram-positive flattened coccus C. Neisseria meningitidis; gram-negative diplococcus D. Enterovirus; no bacteria appear to be present in CSF E. Cryptococcus neoformans; fungal cells with a thick capsule
Which of the following statements is CORRECT?
a. A hypothesis that does not generate a testable prediction is not useful. b. Common sense is usually a good substitute for the scientific method when trying to understand the world. c. It is not necessary to make observations as part of the scientific method. d. The scientific method can be used only to understand scientific phenomena. e. All of the above are correct.
Which of the following diseases make up chronic obstructive pulmonary disease (COPD)?
Select one: a. emphysema, chronic bronchitis, and asthma b. emphysema, tuberculosis, and cystic fibrosis c. chronic bronchitis, tuberculosis, and pulmonary fibrosis d. tuberculosis, cystic fibrosis, and asthma e. pulmonary fibrosis, asthma, and cystic fibrosis
Proteins on the surface of phagocytes called ________ aid in the detection of pathogen molecules
A) lectins B) TLRs C) NOD proteins D) lectins and C3 protein E) both TLRs and NOD proteins