The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
Cell -the basic unit of structure and all living things-ex) a red blood cell
tissue-a group of similar cells working together to perform a single specific function-ex)Nervous tissue
organ-a group of different tissues working together to preform single or multiple functions-ex) our eyes are made up of epithelial tissue, nervous tissue, muscle tissue, and connective tissue.
organ system-A group-of organs working together to perform a function-ex) the digestive system
complex: Organism-all the organ systems working together to make the most complex level of life-ex) human
1. Cellular- One cell composed of molecules and organelles. A neuron is a type of cell
2. Tissue- A group of cells form a tissue. Smooth muscle tissue is an example of a tissue
3. Organ- A combination of tissues that form a discrete entity. The heart is an organ
4. Organ system- A group of organs that work together to perform a function. The respiratory system is an organ system.
5. Organism- A combination of organ systems that come together to make a living being. A human is an organism.
The five level of organization from the simplest to the most complex are as follows: 1. Cell: this is the smallest unit of life. An example is red blood cell. 2. Tissue: tissues are formed when two or more cells which performed similar functions come together. Examples of tissues are blood and bones. 3.Organ: An organ is formed when different tissues with similar functions come together. An example of organ is liver. 4. System: When two or more organs works together to achieve a specific purpose they are refereed to as system. An example of this is the digestive system. 5.Organism: this refers to an organisation of systems which is made up of interdependent parts. An example of an organism is YOU.
1. Cellular- One cell composed of molecules and organelles. A neuron is a type of cell
2. Tissue- A group of cells form a tissue. Smooth muscle tissue is an example of a tissue
3. Organ- A combination of tissues that form a discrete entity. The heart is an organ
4. Organ system- A group of organs that work together to perform a function. The respiratory system is an organ system.
5. Organism- A combination of organ systems that come together to make a living being. A human is an organism.
Explanation: For the first graph, we use a dashed line. This means that the sign > or < corresponds to this graph. If y<1, then the first straight line passes through the point (0; 1), and y<1 is included in the range of values.
For the second graph, we use a solid line. This means that the sign ⩽ or ⩾ corresponds to this graph. If y⩾x, then the second straight line passes through the point (0;0) and x⩽1 enters the range of values.
The system of inequalities:
y⩾x
y<1.
Cells, tissue and organs are the simplest organisms with simple functions. But the organ system and body is much more complex, with large networks and complex organizations. In order, they would be: