Examlex
Classification.The following are chemical functional groups that may be part of a biologically active molecule.Answer the questions by matching the items with the most appropriate group.
a.-COOH
b.-CH3
c.-NH2
d.-OH
e.
f.-PO43-
g.-CHO
-the group that occurs repeatedly in sugars
Social Classes
Distinctive groups within a society, differentiated by factors such as wealth, occupation, and education, affecting individuals' lifestyles and opportunities.
Feudalism
A medieval European social system characterized by the exchange of land for military service and labor, involving a hierarchy of lords, vassals, and serfs.
Storehouses
Large buildings or warehouses where goods are stored before they are distributed for sale or use.
Landlords
Individuals or entities that own and rent out property, such as buildings or land, to tenants.
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