Microscopic Levels:

• Atoms & Molecules: Even before life begins, individual atoms like carbon, hydrogen, and oxygen come together to form molecules like water and organic compounds essential for life.

• Macromolecules: These are large complex molecules formed by linking smaller ones, including proteins, carbohydrates, and lipids. They are the building blocks of cells.

• Organelles: Within cells, specialized compartments called organelles carry out specific functions like energy production (mitochondria), protein synthesis (ribosomes), and waste removal (vacuoles).

• Cell: This is the fundamental unit of life. Cells are self-contained units capable of carrying out all basic life functions (growth, reproduction, energy utilization, etc.).

Multicellular Levels (Applicable to complex organisms only):

Larger, Broader Levels:

Important Points: