In neurons, the __________________ is(are) sometimes covered by a myelin sheath.

Dendritic (Langerhan’s) cells function by:

Which of the following best illustrates a postive feedback system?  

Monosaccharides bond together through ____________________ reactions to produce disaccharides.

What is the primary factor that is tested in an experiment?

During an autopsy, a Dr. cuts an organ into front and back sections. This Dr. has dissected this organ into _______________ and ______________ sections.

Bases are characterized by releasing __________________ ions when placed in water.

Trace elements are those required by an organism in only minute quantities. Which of the following is NOT a trace element that is required by humans and other vertebrates?

Which of the following appropriately describes a control for an experiment?

Which of the following statements is considered to be part of the cell theory?