Global deforestation remains a major concern as huge tracts of rainforest are cut down each day. How does the removal of such large numbers of trees from the world's forests affect the concentration of carbon dioxide in the atmosphere?
A. The concentration of carbon dioxide increases, which has a warming effect on the climate.
B. The concentration of carbon dioxide increases, which has a cooling effect on the climate.
C. The concentration of carbon dioxide decreases, which has a warming effect on the climate.
D. The concentration of carbon dioxide decreases, which has a cooling effect on the climate.
E. The concentration of carbon dioxide remains unchanged, with no effect on the climate.
A. The concentration of carbon dioxide increases, which has a warming effect on the climate.
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The DNA sequence that is repeated many times in a telomere is
A) UUAGGG. B) AAUCCC. C) AATCCC. D) TTAGGG.
During genetic drift the gene frequencies of a population will change ________
a. back and forth and eventually stabilize b. in a random direction based upon chance c. in a random direction based upon the predators faced by the population d. in a predictable direction based upon the number of females in the population e. in a predictable direction based upon the number of males in the population
Phosphorylation of eukaryotic initiation factors 2 and 2B (eIF2/2B)
a. allows them to be recycled back to the ribosome. b. allows them to initiate translation. c. blocks their exchange of bound GDP for GTP. d. blocks the addition of a terminal phosphate to the bound GDP.
Symptoms are
A. subjective characteristics of a disease that only the patient can feel. B. objective manifestations of a disease that can be measured. C. objective manifestations of a disease that can be observed by others. D. characteristics of a disease, such as sweating. E. laboratory tests used to diagnose a disease.