Hierarchy of Life The organization of living things

Introduction to cells ■ ■ Science tries to understand group things in ways that

Organelles ■ ■ ■ The Organelle is the smallest functional part of a living

Cells ■ ■ Organelles working together make Cells. The cell is the smallest functional

Tissues ■ ■ ■ Many cells of the same type working together will make

Organs ■ ■ When many tissues which have different jobs work together toward a

Organ systems ■ ■ Many organs working together which may achieve many different functions

The Body ■ ■ Many organ systems working together create a body. These are

Other ■ ■ ■ This organization from smallest to largest continues with the ecology

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Hierarchy of Life The organization of living things from the smallest to the largest

Introduction to cells ■ ■ Science tries to understand group things in ways that make logical sense so that we can understand how different parts may come together to make a whole. This type of Science is called Holistic science which is different from Reductionist science.

Organelles ■ ■ ■ The Organelle is the smallest functional part of a living thing. IT IS NOT THE SMALLEST LIVING THING (that is the cell). The Organelles are membrane bound parts of the cell which have different roles but come together with those different roles to make the cell work. This is like how people having different jobs in a factory come together to make a factory work. Examples: Mitochondria, or the Nucleolus

Cells ■ ■ Organelles working together make Cells. The cell is the smallest functional living thing. The two distinct types if cells are animal and plant cells. They have many differences but also many similarities Animal cells are found in animals while plant cells are found in plants.

Tissues ■ ■ ■ Many cells of the same type working together will make tissues. These similar cells work together to carry out some specific function. An example of this maybe muscular tissue which there are three types of.

Organs ■ ■ When many tissues which have different jobs work together toward a common function you have an organ. The heart is a organ it is made of muscular tissue which pumps it, blood cells that feed that muscular tissue, nerve tissues which tell it when to pump, and connective tissues which hold it in place.

Organ systems ■ ■ Many organs working together which may achieve many different functions are call Organ systems. An example of this maybe your cardiovascular system. Its function is to bring Oxygen to the muscles and take the waste away from them. The cardiovascular system is made up of the heart, blood vessels, veins and arteries, the lungs as well as nerve organs.

The Body ■ ■ Many organ systems working together create a body. These are often your highest form of life and certainly the most complex because they are made up of many different complex parts working together to keep a plant or animal alive.

Other ■ ■ ■ This organization from smallest to largest continues with the ecology you learned last year. Many bodies of the same type working together is called a Population Many populations is called a community Many communities is called a Ecosystem And all ecosystems together are called the Biosphere