3. which of these substance has a brown color and is
detected by the spectrophotometer in our reaction?
a) guaiacol
d) tetraguaiacol
b) peroxidase e) hydrogen peroxide
c) buffer

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

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

What substance in the leaves gives them a green colour?