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КРОК / KROK
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A colloidal solution emits a matte glow, when light passes through it, due to the light scattering on the colloidal particles as a result of diffraction. Name this physical phenomenon:
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Calendula officinalis as a representative of Asteraceae family can be characterized by the following type of inflorescence:
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What reagent can be used to distinguish between ethanol (C_2H_5OH) and glycerine?
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Short lignified stem is characteristic of the Allium cepa genera. It is a part of modified sprout that is called:
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Name the titrimetric method for quantitative determination of phenol and its derivatives:
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A pregnant woman suffers from pneumonia: the term of pregnancy is 20 weeks. What chemotherapeutical drug not dangerous to development of the fetus can be prescribed to the patient?
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Herbarium specimens of medicinal plants are being studied. Which one of them belongs to Rosaceae family?
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On day 7 of dimedrol (diphenhydramine) treatment, the patient noted a decrease in the effectiveness of the drug. What pharmacological concept describes the decreased response of the body to a drug?
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What nonsteroidal anti-inflammatory drug selectively inhibits COX-2 and has no ulcerogenic effect?
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To determine causative agent of the disease, a Gram-stained smear was prepared from the material obtained from the patient with furunculosis. Staphylococci were detected in the smear. What microscopic presentation allows making this conclusion?
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