Excess UV light depletes the body of which vitamin?
a. folate
b. vitamin A
c. vitamin C
d. vitamin D
e. vitamin E
a
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Cyanide binds and impairs one of the molecules involved in the production of ATP. Which organelle does cyanide act upon?
A. peroxisome B. lysosome C. ribosome D. endoplasmic reticulum E. mitochondria
During Mendel's time, a widely accepted theory called ____ suggested that evolution occurred in spurts rather than by
gradual change.
a. catastrophism b. uniformitarianism c. mutationism d. natural selection e. genetic transformation
With what do cytotoxic cells interact?
A. MHC-I proteins B. MHC-II proteins C. foreign antigen D. MHC-I and MHC-II proteins E. MHC-I proteins and foreign antigens
Briefly describe the shift in rainfall patterns and the consequences that occurred during the 1997-1998 El Niño season. What will be an ideal response?