HELP HELP HELP HELP IM BEHIND IN THIS CLASS I NEED HELP PLEASE What drives surface currents?
differences in water salinity
differences in air temperature
differences in climate
differences in water density​

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Nucleic acids offer variability because they contain alternate forms of genes called .