State two reasons why ph maintenance is important to biological systems

If water is at -10 ° c and energy is added to the water until it is 50 ° c while maintaining a constant pressure of 760 mmhg, describe the phase change of the water?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

The response is the basis for vaccination. primary secondary tertiary none of the above