Why is the scientific method described as cyclic?

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.