The correct answer is C. This part is called the epithelium.
It is the muscular coat which consists of inner circular and outer longitudinal smooth muscle. Its main work is peristalsis.
To propel urine. The outer layer is the mucosa which has transitional epithelium that continuos with the lining of the renal pelvis and also the urinary bladder.
This layer of its work is to secrete mucus which protects and coats the surface of the cells.
Umm... 2006BABY What’s the question?
All living creatures are classified into systems and sub-systems based
on their similar characteristics. They are divided from bigger groups
into smaller groups based on the detail of their similarities i.e. how
they look, move, reproduce and how they relate to each other. A
practical way of understanding the classification of living organisms is
that organisms are linked to other similar organisms via family trees.
The classification of all living creatures includes at least four
levels: order, families, genus and species.
A plant cell has chloroplasts.
An animal cells doesn't.
