The Cretaceous is the most recent period of the ____ era
a. Paleozoic
b. Cenozoic
c. Mesozoic
d. Proterozoic
e. Archaean
ANSWER: c
Biology & Microbiology
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Which group is geologically oldest?
a. prokaryotes b. dinosaurs c. humans d. plants e. bony fish
Biology & Microbiology
On August 8, 2005, the temperature in New Haven, Connecticut, was 82°F with partly cloudy skies. What term defines this description of New Haven's conditions?
A) climate B) weather C) biome D) ecosystem
Biology & Microbiology
Which of the following would increase the electrochemical gradient across a membrane?
A) a sucrose-proton cotransporter B) a proton pump C) a potassium channel D) both a proton pump and a potassium channel
Biology & Microbiology
Who believed that disease had natural causes, e.g., "The Four Humor Theory". and that it could be cured by rational methods?
A. Asclepius B. Fracastoro C. Hippocrates D. Imhotep
Biology & Microbiology