Answer:
Been brought about by the cell theory announced by Theodor Schwann and Matthias Schleiden in 1838, whereby cells were held to be the basic units of all living tissues. Improvements in the microscope during the 19th century made it possible gradually to lay bare the basic structures of cells.
Explanation:
Ok, think about it. Does your skin prevent germs from getting inside you?
Does your skin prevent water from leaving the body too quickly? Does your skin protect your insides from getting damaged when you fall? Do you put food on your skin to absorb nutrients, or do you put food in your mouth like a normal person?
They are the same density.
Kingdom is the largest division that a group of organisms can belong to, for example “animal” or “plant” is a kingdom. In order: kingdom, class, genus, species.
Example of:
Class- Mammals would be a class of the kingdom “animal”
Genus- Homo would be a genus of “mammal”
Species- Homo Sapiens
