What is the different types of cell? ​

Give a brief description about 3d printing,then in your own idea,how is the 3d printing help in sustaining the development of the humanity?

There are probably millions of living things that scientist have not discovered yet if scientist were to find a living thing that does not fit into any of the five kingdoms what should they do explain your answer

What do you think will happen to the tissues that make them up were injured or deseased​