Question

What is the organization of the human body from smallest to the largest?

Answer 1

Hint: Human beings are multicellular organisms. Our body has cells which are organized on different levels so that the body can work efficiently. Our body consists of different types of cells which then aggregate to form tissue. Different types of tissue bind together to form an organ and different organ groups to form an organ system.

Complete answer:
Organ system level of organization is present in human beings.
A cell is the smallest independently working unit of a living organism. Humans are multicellular organisms with different cells which work together.
A cell is a basic structure which performs all the functions of our body. They have different cell organelles within them for the proper functioning of the cell.
A tissue is a group of similar cells which along with the intercellular substances present between the cells perform a specific function. There are four types of tissue in human beings- Epithelial tissue, Connective tissue, Muscular tissue, and Neural tissue.
An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ operates one or more specific physiological functions.
An organ system is a group of organs that work together to perform major functions or meet the physiological needs of the body

Note:
Though all members of kingdom Animalia are multicellular but all of them do not
exhibit a similar pattern of organization of cells. On the basis of the organization, they are further divided into animals having-
1. Cellular level of organization, like a sponge.
2. Tissue level of organization. Example- coelenterates.
3. Organ level of organization. Example- Platyhelminthes.
4. Organ system level of organization. Example- Human.