______are involuntary in action
Smooth muscles and cardiac muscles

______ muscles are voluntary in action .
Skeletal muscles

_______are present in the wall of heart.
Cardiac muscles

_______are found in the walls of alimentary canal, urinary bladder, blood vessels etc.
Smooth muscles

_____ attached to bones.
Skeletal muscles

Which type of microscope would you use to study the detailed structure of a mitochondrion in the cell of human liver?
TEM

Which type of microscope would you use to study the surface texture of human hair?
SEM,

Which type of microscope would you use to study the change in shape of a human white blood cell?

answer light microscope

The two centrioles are collectively called a ______.
centrosome
centromere

_____ has many layers of flat cells. It is present in the lining of oesophagus
and mouth and also over the skin.
Squamous epithelium
Stratified squamous epithelium 
Ciliated columnar
none