Which of the following is a primary advantage of semisynthetic drugs?
a. they must be administered intravenously.
b. they work faster
c. they are less stable and consequently have fewer side effects
d. they are not readily absorbed.
e. they are more effective than the unmodified natural antibiotics.

Ture or false evidence for evolution includes millions of fossils

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.

Which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton