Answer:
Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67×10−27 kilograms.6
Explanation:
A substrate is a reactant that is catalyzed by an enzyme.
This is the process called cellular respiration,it requires sunlight, glucose and A)Oxygen.
Surface tension of water is 72 dynes/cm<span> at 25°C . It would take a force of 72 dynes to break a surface film of water 1 cm long.
Hope this helps.</span>
I believe it is "All living organisms are composed of cells."
