- Answer the Question Using the Accompanying Figure

question 28

Multiple Choice

- Answer the question using the accompanying figure. Which lake zone(s) support(s) detritivores and decomposers, but not photosynthesizers?

• A) A only
• B) B only
• C) C only
• D) A and B
• E) B and C

---

Definitions:

Positron Emission Tomography (PET)

A nuclear medicine functional imaging technique that produces a three-dimensional image of functional processes in the body.

Brain Activity

Refers to any type of neural or cerebral function involving electrical, chemical, and blood flow changes within the brain.

Radioactivity

The spontaneous emission of radiation in the form of particles or electromagnetic waves from the nucleus of an unstable atom.

Cerebellum

A part of the brain located at the back of the skull, crucial for motor control, coordination, precision, and accurate timing of movements.