Directions: Drag and drop the structures listed below in order from least to most complex (smallest to biggest).
Top label: Least Complex
atom
cell
organ
organism
organ system
organelle
tissue
molecule
most complex
Least Complex: atom
molecule
organelle
cell
tissue
organ
organ system
organism
Most Complex
Least Complex: atom
molecule
organelle
cell
tissue
organ
organ system
organism
Most Complex:
To determine the order from least to most complex, we need to understand the hierarchy of biological structures. Here is the correct order:
1. Atom: An atom is the smallest building block of matter and cannot be broken down further by ordinary chemical means.
2. Molecule: A molecule is formed when two or more atoms chemically bond together.
3. Organelle: Organelles are specialized structures within cells that perform specific functions. Examples include mitochondria, nucleus, and chloroplasts.
4. Cell: Cells are the basic units of life and consist of various organelles working together to carry out essential functions.
5. Tissue: Tissues are a collection of similar cells that work together to carry out a specialized function. Examples include muscle tissue and nervous tissue.
6. Organ: Organs are composed of different tissues coordinated to perform a specific function in the body, such as the heart, liver, and lungs.
7. Organ System: Organ systems are a group of organs that work together to perform a particular function in the body. Examples include the cardiovascular system and respiratory system.
8. Organism: An organism is an individual living being that consists of a complex arrangement of organ systems working together.
So, the correct order from least to most complex is as follows:
Atom - Molecule - Organelle - Cell - Tissue - Organ - Organ System - Organism