Which option shows the correct order of organization within multicellular organisms (from least complex to most complex)?
The correct order of organization within multicellular organisms, from least complex to most complex, is as follows:
1. Cells
2. Tissues
3. Organs
4. Organ systems
5. Organism
The correct order of organization within multicellular organisms, from least complex to most complex, is as follows:
1. Cells: The basic structural and functional units of life.
2. Tissues: Similar cells grouped together to perform a specific function.
3. Organs: Different tissues working together to perform a particular task.
4. Organ systems: Groups of organs that work together to carry out specific bodily functions.
5. Organism: The complete multicellular individual, consisting of various organ systems working in coordination.
To determine the correct order of organization within multicellular organisms, from least complex to most complex, we need to consider the hierarchy of biological organization. Let's go through each level and arrange them in ascending order of complexity:
1. Cells: The fundamental unit of life is the cell. All living organisms are made up of one or more cells.
2. Tissues: Cells with similar structures and functions group together to form tissues. Examples include epithelial, connective, muscular, and nervous tissues.
3. Organs: Different types of tissues organize together to form organs, which have specific functions. For instance, the heart, lungs, liver, and brain are all examples of organs.
4. Organ systems: Multiple organs working together to carry out a specific function form an organ system. Examples of organ systems include the respiratory system, circulatory system, nervous system, etc.
5. Organism: Finally, all the organ systems combine to create a complete, functioning organism. This level refers to the entire multicellular organism itself.
Therefore, the correct order of organization within multicellular organisms, from least complex to most complex, is: Cells → Tissues → Organs → Organ Systems → Organism.