Which is the appropriate word among the following for the given sentence.
Examination of living tissue.

Biopsy

The appropriate word among the given choices for the sentence "Examination of living tissue" is biopsy.

• Biped is a creature that walks on two feet.
• Post mortem is an examination of a dead body to determine the cause of death.
• Surgery is a medical procedure that involves cutting into the body.
• Biopsy is the removal of a small piece of living tissue from the body for examination under a microscope.