Most Childhood Cancers Originate from The

question 2

Multiple Choice

Most childhood cancers originate from the:

• A) placenta.
• B) environment.
• C) mesodermal germ layer.
• D) neural tube.

---

Definitions:

Fluctuation

A variation or change in a state, quantity, or level, often without a set pattern or rhythm.

Mismatched

Not properly or suitably matched; often used in the context of DNA sequences where bases do not align properly.

Littoral Lake Zone

The shallow area around the perimeter of a lake where light reaches the bottom, supporting aquatic plants.

Benthic Zone

The ecological region at the lowest level of a body of water such as an ocean or a lake, including the sediment surface and some sub-surface layers.