What element is found in all organic compounds?
a. carbon
b. oxygen
c. helium
d. iron
e. nitrogen
Answer: a. carbon
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Select the diseases caused by trypanosomes.
A. Leishmaniasis B. Giardiasis C. Trichomoniasis D. African Sleeping Sickness E. Chagas Disease
A mutation in the RecC subunit of the RecBCD complex would likely have what effect?
A. The enzyme would be unable to recognize chi sites, unwinding and degrading both strands. B. The 3'-ending strand would be degraded faster than the 5'-ending strand. C. The enzyme would not be able to bind RecA. D. The enzyme would be unable to carry out its major function, which is fork regression. E. The enzyme would be able to perform strand invasion without RecA.
Examine the figure above. In the continental United States, the dark green patches show areas with the highest bird species richness (200+ species). What best explains why these areas have such diversity?
A. These areas have the highest temperatures in the continental United States B. These areas have mountainous terrain. C. These areas have low frequencies of extreme weather events and fire. D. These areas have well-protected natural areas.
The production of light by an organism is called ____.?
A. autophotoproduction
B. bioluminescence
C. luminarianism
D. autoillumination
E. bioillumination