QQuestionBiology
QuestionBiology
List the levels of biological organization from smallest to largest.
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Step 1:
Step 2:: The smallest level of biological organization is the molecule.
Molecules are the smallest units of matter that have a specific identity and are composed of one or more atoms. In biological systems, molecules include proteins, nucleic acids, carbohydrates, and lipids.
Step 3:
Step 4:: The next level of organization is the cell.
Cells are the basic units of life and are capable of performing all the functions necessary for life. Cells can be either prokaryotic or eukaryotic, with eukaryotic cells being more complex and having a true nucleus and other membrane-bound organelles.
Step 5:
Step 6:: A group of similar cells that work together to perform a specific function is called a tissue.
There are four main types of tissues in the human body: epithelial, connective, muscle, and nervous.
Step 7:
Step 8:: A group of tissues that work together to perform a specific function is called an organ.
Examples of organs include the heart, lungs, liver, and stomach.
Step 9:
Step 10:: A group of organs that work together to perform a specific function is called an organ system.
Examples of organ systems include the circulatory system, respiratory system, digestive system, and nervous system.
Step 11:
Step 12:: The largest level of biological organization is the organism, which is a complete, independent, living being.
An organism can be a single cell (such as a bacterium) or a multicellular organism (such as a human).
Final Answer
The levels of biological organization from smallest to largest are: molecule, cell, tissue, organ, organ system, and organism.
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