L-dopa is effective against Parkinson's, but its enantiomer D-dopa is not. An enantiomers drug may not be equally effective. The enantiomer, in chemistry, is one of two stereoisomers that are mirror images of each other that are non-superposable, much as one's left and right hands are the same except for being reversed along one axis. It is also known as an optical isomer.
Answer:
C. Varieties of an element that differ only in the number of neutrons are called isotopes.
Explanation:
The Earth is approximately 
old. The solar system formed from giant gas clouds which was a part of the solar nebula.
The surface of soil which demarcates two soils of different geological ages is called a unconformity.
Palesol is the soil that lies between sediments or volcanic deposits. If the paleosol is older they have lithified rock.
Hence, option C is true.
The main purpose of the Articles of Confederation was to establish numerous states as well as a government in the hopes that American could develop into a strong nation with a strong presiding government. It was not very successful because it established a weak government that was not well fit to control a nation.
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Wundtian psychology in Germany was slow to develop because <u>"it was not seen as having practical value".</u>
The trouble was that Wundt's psychology, with its emphasis on depicting and organizing the components of cognizance, was not exceptionally valuable for taking care of genuine issues. Maybe that was one motivation behind why Wundt's psychology did not flourish in the even minded culture of the United States. Wundt moved toward brain research as an absolutely scholastic science; he had no enthusiasm for applying his brain research to down to earth concerns. In this manner, regardless of its far reaching acknowledgment at colleges in numerous different countries, Wundtian brain research at home in Germany was moderately slow to create as a distinct science.
I believe it is b physical punishment. I hope it is right sorry if not
