Skin muscle etc.yk look it up too :()
Answer:
im so sorry this is so late but i hope i can still help.... its the 3rd one
Explanation:
The answer is <span> an endothermic reaction. </span>Photosynthesis is a type of endothermic reaction because it needs the energy from light (sun) to convert water and carbon dioxide into oxygen and glucose needed by other organisms.
An enzyme lowers the activation energy of a reaction so it can take place within living organism, so an enzyme is a biological catalyst.
If the question is referring to an osmosis experiment, the high test concentration of sugar in at the beginning will be INSIDE the visking tubing.