What was the average number of tropical storms per season for the time period 2005 - 2014

How do you date a sample of rock that you suspect as being one of the earliest on earth

Describe the function of the endomembrane system? what organelles are involved?

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen