PLEASE HELP ITS A GRADE AND THESE ARE THE LAST OF MY POINTS

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis