A healthcare provider prescribes phenytoin (Dilantin) 0.75 g…

A healthcare provider prescribes phenytoin (Dilantin) 0.75 g PO stat. Available is phenytoin 250 mg capsules. How many capsules will you administer per dose? Round to the nearest whole number. Do not add any trailing zeros or units to the answer.  [CLOZE_01] capsule(s)

A nurse is preparing to administer hydrocortisone 100 mg IM…

A nurse is preparing to administer hydrocortisone 100 mg IM daily to a client. Available is hydrocortisone 250 mg/2 mL. How many mL should the nurse administer per dose? Include leading zero. Round to the nearest tenth if applicable. Do not include the units.  [CLOZE_01] mL

You want to know how the amount of light affects the rate of…

You want to know how the amount of light affects the rate of photosynthesis.  To test this, you use sections of spinach leaves that have been vacuum filtrated.  The vacuum filtration causes the spinach leaves to sink in bicarbonate solution because the air has been removed from the intercellular spaces.  As the spinach leaves conduct photosynthesis, oxygen will be produced and the spinach leaves will begin to float again.  You set up two petri dishes of recently filtrated spinach leaves in bicarbonate solution (all the leaf sections are sunken at the start of the experiment).  You place one in the dark and one under a bright light.  Which of the following is the most appropriate hypothesis for the experiment?

England implemented Clean Air legislation in 1956 which sign…

England implemented Clean Air legislation in 1956 which significantly reduced the air pollutants responsible for darkening the tree trunks in forests outside of London after the Industrial Revolution.  In 1960, the frequency of melanic (dark) moths in the population was 94%.  Dark moths steadily decreased in the population.  A study in 1994 showed only 19% of the population consisted of dark moths.  Which of the following correctly explains this trend in terms of evolution by natural selection?