Question

question 1 of 10

what is the smallest, most basic structure of all life?

atom
particle
organ
cell

Explanation:

Identify the biological definition of life's basic unit

$$ \text{Cell} = \text{The fundamental structural and functional unit of all living organisms} $$

Evaluate the given options against the criteria of life

• Atom: Smallest unit of matter, but not living.
• Particle: Subatomic or physical unit, not living.
• Organ: Complex structure made of tissues, not the smallest unit.
• Cell: Smallest structure that exhibits all characteristics of life.

Answer:

• Atom
• Particle
• Organ
• Cell (Correct answer)