Many cases of pediatric thyroid cancer occurred after the 1986 Chernobyl nuclear accident in Ukraine and the cause was traced to milk containing iodine-131
Which of these might be the most effective method to prevent thyroid cancer increase following exposure to excessive radiation? A) Do not allow anyone to drink any milk.
B) Give dairy cows large doses of iodine.
C) Give humans large doses of iodine before exposure.
D) Give people large doses of iodine a few days following exposure.
A
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What percentage of terrestrial plants are colonized by arbuscular mycorrhizae?
A) 10 B) 25 C) 50 D) 85
Unlike humans, trees transport water without ______________
What will be an ideal response?
A nonprofit conservation organization receives a sizeable donation and decides to purchase several thousand acres of 'high desert' in southern California. This particular type of desert has an intermediate level of species diversity and few unique species. However, much of the original areas of high desert have been converted to suburban housing and shopping. The decision by the nonprofit to preserve this area was most likely based upon what conservation strategy?
A. Conservation of endemic species hotspots B. Conservation of representative habitats C. Conservation of megadiverse areas D. Conservation of single species
The subunit of a kidney that purifies blood and
restores solute and water balance is the a. glomerulus. b. loop of Henle. c. nephron. d. ureter. e. peritubular capillary.