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Ecology Levels Of Biological Organization Essay

447 words - 2 pages

Ecology is a branch of science concerned with the interrelationship of organisms and their environments. To understand ecology, one must first examine the numerous levels of biological organization. From neutrons and protons to the great biosphere, each level plays a distinct role in the lives or organisms. The first level is of the subatomic particles: protons, neutrons, and electrons. Protons, located in the nucleus, have an electrical charge, and neutrons, also located in the nucleus have no charge. Electrons have a negative electrical charge. An important concept is that electrons can carry and release energy. These three ...view middle of the document...

Some of these important compounds include nucleic acids, carbohydrates, lipids, and proteins. Some of these smaller molecules have other functions than as building blocks.Organelles (little organs) are the next level, which are specialized structures inside of a cell and are made up of molecules. The organelles of a plant, including the cell membrane, ribosome, cell wall, mitochondria, and chloroplast are all made up of cells. The cell is the smallest unit of biological organization that biologists consider alive. It serves as the unit of structure and function of all living things. Cells play a vital role in the levels of organization. Cells make up tissue, a group of distinct and similar cells that carry out a specific function. Tissue, in turn, makes up organs. Organs are groups of tissues organized together to carry out a particular set of functions. Common plant organs include the root, stem, leaf, and flower. Organ systems are groups of organs that function together to carry out broad sets of functions. Together, these organ systems help make up multicellular organisms. Sequentially, a species is a set of multicellular organisms that share similar characteristics and can be bred with one another to produce fertile offspring. All members of the same species living in the same area is a population. On the contrary, all members of different species in a specific area is a community.

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