Sodium's reaction with water is an example of what kind of property?

What is the period of cell life when it is conducting

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

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million