the organ is made up to one or more types of tissues, the organism is an individual made up of one cell (unicellular) or organ system (multicellular). it must be an organ.
The group of different **tissues **form organ .
So, option A is correct option.
What is an organ?
The group of **cells having similar structure **and perform specific **function **together is called **tissues **and a group of **tissues **performing particular function is called organ .
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Groups of different tissues form an organ, which is a structure with a specific function in the body. Organs are composed of multiple tissue types working together. The correct answer is A. organ.
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