Name the connective tissue that is found between skin and muscles.

Why are skeletal muscles known as striated muscles?

Fill in the blanks:
$(a)$ Lining of blood vessels is made up of ..............
$(b)$ Lining of small intestine is made up of ..............
$(c)$ Lining of kidney tubules is made up of ...............
$(d)$ Epithelial cells with cilia are found in ..............

Name a connective tissue which has a hard matrix.

Differentiate between striated,unstriated,and cardiac muscles on the basis of their structure and site/location in the body.

State whether the following statement is true or false:
The muscles of the heart show rhythmic contraction and relaxation throughout life.