The multicellular organism's cell organisation is depicted in the diagram below.

Cell > P > Organ > System > Organism

Which component of the item does P represent?

Organisms are composed of different levels of the organization, ranging from the smallest functional unit, cells, to the highest level, the organisms.
The sequence is as follows. Cell > Tissue > Organ > System > Organism

Here are the levels of organization in organisms, from the simplest to the most complex:

Cells: Cells are the basic unit of life and the smallest functional and structural unit of an organism. All living organisms are made up of one or more cells, which carry out various functions to sustain life.

Tissues: Tissues are groups of similar cells that work together to perform a specific function. Examples of tissues in animals include muscle tissue, nervous tissue, and connective tissue.

Organs: Organs are structures made up of two or more tissues that work together to perform a specific function. Examples of organs in animals include the heart, lungs, liver, and brain.

Organ systems: Organ systems are groups of organs that work together to carry out specific physiological functions. Examples of organ systems in animals include the digestive system, respiratory system, circulatory system, and nervous system.

Organisms: Organisms are individual living things, composed of different organ systems that work together to maintain homeostasis and carry out all the necessary life functions.