Why Can the Human Eye NOT See Cells

question 46

Multiple Choice

Why can the human eye NOT see cells?

• A) because cells are only about 0.1 mm in diameter
• B) because cells are only about 0.5 ìm in diameter
• C) because cells are only about 1.0 mm in diameter
• D) because cells are only about 5.0 ìm in diameter

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Definitions:

Equilibrium

A condition in which all competing forces or influences are balanced, often used in contexts such as economics, physical sciences, and psychology.

Inner Ear

The inner ear is the deepest part of the human ear, consisting of the cochlea, vestibule, and semicircular canals, playing key roles in hearing and balance.

Capillary Refill

A test to assess peripheral circulation and dehydration by measuring how long it takes for color to return to an extremity's capillary bed after pressure is applied.

Chronic Obstructive Pulmonary Disease

A group of lung conditions that block airflow and make it difficult to breathe, including emphysema and chronic bronchitis.