The Cell /
The cell is the smallest living entity of all living things. It forms an essentail biological organisational unit, from which nearly all known living things are based on. Cells have the ability to reproduce autonomously and support themselves.
Cells also have common essential capabilities such as metabolic processes, absorbing raw materials (ions, oxygen, proteins, ...) whose transformation into new components and energy and processing waster products, protein biosynthesis, ....
The human body is made up of several trillion cells approx. 80 to 220 different cell types which connect to certain tissues.
Dr. Alexis Carrel, a French doctor received a Nobel prize in 1935 for his research, which made it possible for him to keep the cells of a chicken's heart alive for 34 years.