Ferrous iron (Fe2+) oxidation generally occurs in environments with
A) alkaline conditions.
B) high H+ concentrations.
C) high oxygen content.
D) little or no light present.
Answer: B
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Rostow's model of economic development
A) is equally applicable to the countries of today as it was to Western countries in the 19th century. B) claims that all countries can reach high GDP per capita if they follow the right path. C) is accepted as valid by most geographers. D) takes into account the interdependence of countries. E) is accepted as valid by most geographers and takes into account the interdependence of countries.
A treatment for some forms of anemia is to take a drug that turns on transcription of fetal hemoglobin. This would increase the proportion of ________ globin chains.
A) alpha B) gamma C) delta D) epsilon
Which statement about digestion in ruminants is FALSE?
A. Ruminant animals have symbiotic bacteria to aid in the digestion of their food. B. Food materials are re-chewed. C. Chewing results in mechanically breaking down food and exposing more cellulose to digestive enzymes. D. Ruminants have a smaller range of foods in their diet than do humans. E. Ruminants have a single but disproportionately large stomach chamber.
If you observe rod-shaped, pink cells on a slide that had just been Gram stained, you can assume that their cell walls contain endotoxin.
Answer the following statement true (T) or false (F)