Is a fossil still a fossil if it is preserved artificially? for example, (is a mummy a fossil even though it was preserved by people? )

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots