Biogeochemical Cycles

question 50

Multiple Choice

Biogeochemical cycles:

• A) Only include processes conducted by or within living organisms.
• B) Pertain only to the abiotic environment.
• C) Describe the movement of water and other materials through abiotic and biotic interactions.
• D) Only pertain to exchanges and interactions that occur within the atmosphere.
• E) Are used to describe the attempts of humans to recycle various pollutants.

---

Definitions:

Internal Reflection

A phenomenon where light wave strikes a medium boundary and is completely reflected back into the medium.

Photosensitive Cells

Cells that are sensitive to light, playing a key role in vision by converting light into signals that can be processed by the brain.

Retina

The light-sensitive layer of tissue at the back of the inner eye that converts light into neural signals for vision.

Jellylike Material

A substance with a gelatinous texture, often used in various medical and biological contexts to describe the consistency of certain cellular components or materials.