Levels of Biological organization-Mrs. Lloyd – Flashcards
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Atom
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The smallest part of an element made of protons, neutrons, and electrons. Ex. Carbon (C)
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Molecule
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Two or more atoms bonded together. Ex. water
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Organelle
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A small part inside a cell that has a specific job to do. Ex. vacuole
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Cell
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The basic unit of structure and function in a living thing. Ex. white blood cell
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Tissue
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Many cells of the same type working together to perform a function. Ex.
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Organ
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Different tissues working together to form a structure with a specific function. Ex. heart
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Organ System
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Different organs working together to perform a major process in an organism. Ex. Digestive System
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Organism
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A single living thing that has all of the characteristics of life. Ex. Dog
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Population
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Many organisms of the same type (species) in the same place at the same time. Ex. a herd of Caribou
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Community
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All of the different living things (orgamisms) in the same place at the same time. Ex. The white tail deer, oak tree, and gray squirrels in the forest.
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Ecosystem
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All of the living things (biotic) and the non-living factors (abiotic) in the same place at the same time. Ex. All of the green algae, sunfish, frogs in the water, along with amount of salt and temp of water.
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Biome
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A region of the earth's surface with a specific climate where only certain types of plants and animals live. Ex. Tundra
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Biosphere
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The part of the earth's surface where living things can be found. Ex. Earth
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Levels of Biological organization from smallest to largest
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Atom, Molecule, Organelle, Cell, Tissue, Organ, Organ System, Organism, Population, Community, Ecosystem, Biome, Biosphere
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Levels of Biological organization from largest to smallest
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Biosphere, Biome, Ecosystem, Community, Population, Organism, Organ System, Organ, Tissue, Cell, Organelle, Molecule, Atom
