Normal Cells Grown Outside the Body Divide a Certain Number

question 109

True/False

Normal cells grown outside the body divide a certain number of times and then stop dividing, suggesting this is a normal, programmed event.

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Definitions:

River Terrace

A flat, bench-like structure alongside a river, formed by the river cutting deeply into the land then retreating, leaving a raised platform.

Well-developed Soil

Soil that has undergone extensive formation processes, resulting in distinct layers and rich nutrient content.

Lava Flow

The movement of lava as it pours out and spreads over the land following a volcanic eruption.

Angular Unconformity

An unconformity (ancient erosion surface) in which the older, underlying strata dip more steeply or at a different angle than the younger, overlying strata.