If you wear gloves and eye protection in the lab, why do you need a lab coat?
A) to protect your eyes from the liquid that could be splashed and to protect your eyes from being rubbed with contaminated gloves
B) to protect your clothes from being touched with contaminated gloves and spills
C) to protect your hands from being contaminated with ocular fluid
B) to protect your clothes from being touched with contaminated gloves and spills
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What do restriction endonucleases do?
a. break phosphodiester bonds b. break ester bonds c. break glycosidic bonds d. break peptide bonds e. break hydrogen bonds
What factors are attributed to the high productivity of continental slopes?
a. Sunlight and substrate availability b. Concentration of nutrients and sunlight c. Temperature and salinity d. Concentration of nutrients and salinity
The interaction of sympathetic and parasympathetic systems is best described as _____
a. antagonistic b. cooperative c. overriding d. synergistic e. ineffective
Alpha and beta interferons
A) help protect virus-infected cells from the effects of the pathogen. B) protect the cells that secrete them from being invaded by a virus. C) are produced by infected fibroblasts and macrophages. D) produce active antiviral proteins (AVPs) that coat the surface of healthy cells and prevent the attachment of pathogenic viruses. E) produce no adverse effects in the body.