Which of the Following Is a Recent Advance That Is

question 97

Multiple Choice

Which of the following is a recent advance that is important to our understanding of Alzheimer's disease?

• A)The discovery that PET scans can eliminate sticky deposits called plaques.
• B)The manufacture of a radioactive marker that attaches itself to plaques.
• C)The finding that amyloid plaques mask or hide the presence of Alzheimer's disease.
• D)The theory that links Alzheimer's disease to low levels of ambient radioactivity.

---

Definitions:

Island Chains

Sequential islands formed close to each other, often as a result of volcanic activity, and stretching out over distances in the ocean.

Seafloor Spreading

The process by which new oceanic crust is formed at mid-ocean ridges and slowly moves outward from the ridge, contributing to continental drift.

Kilometers Wide

A measurement indicating that the width of a geographical feature or object extends for several kilometers.

Basaltic Lava

A type of lava originating from mafic rock, characterized by low viscosity and a high content of magnesium and iron, making it very fluid.