Question

What is the difference between organ and organism?

Answer 1

Hint: The organs, tissues and other elements of the system work together to keep an organism alive. Organ systems consist of a collection of organs together.

Complete answer:
All living things are made up of cells. In unicellular organisms, all essential tasks are done by a single cell. For example, in case of amoeba, only a single cell can do breathing, respiration, ingestion of food and respiratory gases, and excretion. While, there are millions of cells in the multicellular organisms. Most of these cells are specially built to execute a few activities. Cells specialized in one role are frequently clustered together in the body. This implies that a certain function is done by a cluster of cells at a specific location in the body. This group of cells, called tissues, is organized and designed to have the highest possible quality of work. Blood, phloem, and muscle are also form of tissue. The tissue is created by a group of cells that are identical in shape and operate together to do a specific task.
The organs, tissues and other elements of the system work together to keep an organism alive. In all multicellular species, organs and organelles are found. An organ is a tissue collection that has the same function. A large organ is part of the body. Organ systems consist of a collection of organs together. Most of the body is made up of organs. The human body normally contains about 78 bodies, including the brain, heart, liver, lungs, kidneys are the five essential organs for survival. The difference between organ and organism are given below:

Organ	Organism
An organ is a group of tissues that forms a specific structure and functions definite tasks.	An organism is a form of life. It may be unicellular or multicellular.
An organ is composed of tissues.	An organism is composed of organ systems.
Heart, brain, lungs, etc. are example of organs.	Amoeba, plants, animals, etc. are examples of different organisms.

Note: Tissues are created by cells, organs are formed by tissues, and organ systems are made up of organs, and organisms are made up of organ systems. The human body normally contains about 78 bodies, including the brain, heart, liver, lungs, kidneys are the five essential organs for survival.