Which of the following is a correct statement about the distribution of genes in a molecule of DNA?
A) In both bacteria and higher organisms the genes are continuous.
B) In both bacteria and higher organisms the genes are discontinuous.
C) In bacteria the genes are continuous, but in higher organisms they are discontinuous.
D) In bacteria the genes are discontinuous, but in higher organisms they are continuous.
C
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The principle of uniformitarianism, developed by James Hutton, implies that ________.
A. natural laws are uniform through time and space B. the present provides almost no clues to understanding the past C. geologic processes always occur at the same rate D. gravity results from the bending of space and time E. all hot spots formed early in Earth's history
To some analysts, the key problem with people collectively degrading the earth's life-support system is the large number of people in less-developed countries, while other analysts state that the key factor is ____.
A. overconsumption in affluent countries B. rapid technology growth C. improved sanitation and medical advances D. lack of education for women E. Earth's changing carrying capacity
A transform fault is ________
A) a dip-slip fault connecting an anticline with a syncline B) the rift bounding fault on a mid-ocean ridge C) a reverse fault that steepens into a thrust fault D) a strike-slip fault that forms the boundary between tectonic plates
In which year were the penicillins first discovered by Alexander Fleming?
A) 1900 B) 1914 C) 1928 D) 1943