In the following question, select the related word from the given alternatives.
Cell : Tissue :: Tissue : ?

The correct option is Organ.

Step-by-step Explanation:

1. Analyze the first pair (Cell : Tissue):
A cell is the basic structural and functional unit of life. When multiple similar cells group together to perform a specific function, they form a Tissue. Thus, tissues are made up of cells (a higher level of biological organization).

2. Apply the same logic to the second pair (Tissue : ?):
Following the same structural hierarchy of living organisms: Just as cells group together to form tissues, multiple tissues group together to form an Organ (such as the heart, lungs, or stomach).

Therefore, the complete relationship is:
Cell : Tissue :: Tissue : Organ