A microscope.
because cells were unable to be seen without the aid of an electron microscope
Most cells contain structures that are transparent and without color, which makes visualization difficult, even with the aid of a microscope. Cell staining is used to gain more information about cells and tissues, and allows for the structures within cells to be seen in great detail
Astrocytes
keratinocytes are the most abundant cells of the epidermis. They protect the immune system by not allowing bacteria to enter.
The function of the white blood cells is to aid in healing. These white blood cells are a huge part of the immune system.
because cells were unable to be seen without the aid of an electron microscope
the want to
Between 1 and 100 micrometers, which is why you cannot see them without the aid of a microscope.
Most cells contain structures that are transparent and without color, which makes visualization difficult, even with the aid of a microscope. Cell staining is used to gain more information about cells and tissues, and allows for the structures within cells to be seen in great detail
The microscope aids the scientist by making it possible for them to see cells, get a closer look at small objects, and examining specimens
Astrocytes
They magnify extremely small objects, many too small for the eye to see otherwise. They can be used to examine crystals, cells, bacteria, and computer chips, and can aid in delicate surgery.
Cellulose provides structure and support to plant cells in their cell wall. Plant cells are more rigid and need to keep their structure more stable without the aid of a skeletal system like most animals have, so the cell wall filled with cellulose helps provide that structure.
the fart
All living cells have ribosomes. The ribosomes are the " workbench " upon which proteins are synthesized. The ribosome has catabolic RNA to aid in this task and without ribosomes I can not see proteins being made, so ribosomes are vital to all living cells.
keratinocytes are the most abundant cells of the epidermis. They protect the immune system by not allowing bacteria to enter.
Stephen Hawking.