Your elbow is a hinge joint (think like a hinge on a door) and your shoulder is a ball and socket joint. Your elbow can only move two directions, but your shoulders can move anyway they want (omni-directional). Hope this helped!
A fuel cell works like a battery. It consists of two electrodes where the reactions would occur and an electrolyte solution which allows for caharged particles to flow. In a fuel cell that uses hydrogen and oxygen as reactants. The hydrogen would enter the cell at the anode where oxidation would happen. So that the species that is formed in the anode side would be hydronium ions and electrons. The oxygen, on the other hand, would enter the cathode electrode where reduction occurs. The species that are produced in this side of the cell are water molecules. Together, the net reaction is called a redox reaction.
Answer: I think it's phospholipid bilayer
Explanation:
Im sorry if that is wrong.
Answer:
DNA
Explanation: DNA is contain strictly in the nucleas and is copied into RNA which is then transferred to the cytoplasm.
For any future question similar to this one remember:
RNA is 'the messenger DNA' and is contain in the cytoplasm.
DNA is contain in the nucleus and is copied into RNA.
