BIOL

TRUE OR FALSE?

Cell division is not the only way single-celled organisms can reproduce.

• True

• False

Multicellular organisms need cell division to grow and to replace dead or damaged cells.

• True

• False

Cells divide does not divide in response to specific molecular signals, typically from growth factors. But cells can also receive signals from other molecules that cause cells to differentiate or die.

• True

• False

Cells divide to produce two identical daughter cells. Cells stop dividing to specialize in structure and function, what is this process called?

• Differentiation

• Apoptosis

• Regulators

• Cycle

A process that eliminates unnecessary cells during development and removes unhealthy or damaged cells in the mature organism.

Cells can also undergo programmed cell death.

• True

• False

To remain healthy, it's critical for an organism to maintain the right number of cells. This is achieved primarily by regulating the ____

• Cell cycle

• Differentiation

• Apoptosis

• Phase

Cell cycle regulators are _ that may stimulate or halt cell division, instruct cells to differentiate, or initiate cell death.

• Molecular signals

• Warning signs

• Villi

• Resting signlas