The necleus has a positive charge because the proton's are found there
D because kg is mass and cubic cm is volume which Density = Mass / Volume
They binds and make enzyme-substrate complex. Their shapes are same so they fit together naturally.
ATP stands for Adenosine Triphosphate which is present in every cell’s cytoplasm and nucleoplasm which is essential in all the physiological mechanisms. It is considered as the energy currency of life or the “molecular unit of currency”. It stores the energy that we need every day to do our daily undertakings. The primary function of ATP is to transport chemical energy within the body cells for metabolism. It is said that 1 moleculte of ATP is composed of 3 phosphate groups.<span> </span>
Pretty sure the realistic answer is A. They had traits that helped them adapt the environmental changes
