Give an explanation of the difference between fraternal and indentical twins.

Which of the following is the most common cancer in American males between the ages of 15 and 34 years? 

Select the correct term with abbreviation or acronym

Match the birth control method with its definition:

A dangerous condition in which a fertilized egg is implanted and develops outside the uterus is ?      Pick all that apply 

Which of the following is the rhythmic pressure against the walls of an artery caused by contraction of the heart?

Which of the following is lower chambers of the heart? 

Which of the following refers to working in opposition to each other? 

Which of the following is not one of the three (3) main functions of the lymphatic system? 

Which of the following is the describes the term proliferation?