Question

designer drugs are created by adding to or omitting something from an existing drug. what are designer drugs called?
a bonding agents
b parasites
c analogs
d lemurs

Explanation:

Designer drugs are created by modifying existing drugs. Analogs are substances that are structurally similar to another compound (in this case, an existing drug) but have slight changes. Bonding agents are substances that help bind things together, parasites are organisms that live on or in another organism, and lemurs are a type of primate. None of these other options fit the description of designer drugs as modified existing drugs.

Answer:

C. analogs