Living things must maintain a fairly constant pH balance because the pH level determines Which on?

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

In each transformation of energy , some energy what?