Based on the principle that the body is made of specialized cells, what can be inferred about the cells in your muscles versus the cells in your brain?

Only brain cells are true cells.

Only muscle cells are fundamental units.

What is the most accurate description of a cell's primary role in the human body?

A fluid that transports nutrients between organs

A fundamental unit that performs a specific, specialized task

A protective barrier that only exists on the skin's surface

A messaging system that only transmits signals from the brain

The body is a single, large cell that divides into smaller parts.

Cells are independent organisms that happen to live inside the body.

The body's overall function is the direct result of the combined, coordinated activities of its trillions of cells.

Only a few specialized organs are made of cells, while the rest of the body is made of other materials.

At the skeletal structure level

At the whole-body level simultaneously

At the cellular level, with a problem in individual cells