Examlex
What purpose did Gothic cathedrals serve in the religious and civic lives of ordinary lay Christians of medieval Europe?
Propionic Acid
A naturally occurring carboxylic acid with chemical formula C3H6O2, used in food preservation.
Alanine
A nonessential amino acid that is used in the biosynthesis of proteins.
Amino Group
A functional group consisting of a nitrogen atom attached by single bonds to hydrogen atoms, alkyl groups, or aryl groups.
Amino Acid
Organic compounds containing an amine group, a carboxylic acid group, and a side chain that varies between different amino acids, key building blocks of proteins.
Q1: In what way was the Moche civilization
Q12: On what was political authority in the
Q27: How did a hereditary kingship and aristocracy
Q32: How does this illustration reflect the major
Q40: What was Catherine the Great's most significant
Q56: What do different writing materials-clay tablets, bones,
Q63: What was the Phoenicians' greatest cultural achievement?<br>A)
Q70: What happened when the Inca leader Atahualpa
Q70: What is the purpose of flying buttresses
Q74: What are the Namib and the Kalahari?<br>A)