Examlex
The four basic chemical elements of DNA are identified by the letters A,B,C,D.
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Q149: According to the principle of _,the fate
Q178: The nature of the effect of a
Q189: A theory is:<br>A)an opinion or idea about
Q238: Which of the following neurotransmitters affects neurons
Q316: When psychologists say that a test has
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Q344: In a normal brain,the two hemispheres communicate