b. phosphate. The polar head of a phospholipid is negatively charged and is made up of phosphate molecules. This polar head region attracts water (hydrophilic) and is positioned outward to interact with water.
Answer:
27 volts
Explanation:
According to Ohm's Law
V=IR
where V is voltage I is current and R is resistance
V=3*9
V=27 volts
