In Which of the Following Environments Would You Expect to Find

question 9

Multiple Choice

In which of the following environments would you expect to find a high number of iron-reducing bacteria?

• A) acidic mine drainage
• B) deep subsurface
• C) open ocean
• D) agriculture soil

---

Definitions:

Medullary Cavity

The central cavity of bone shafts where red or yellow marrow is stored.

Endosteum

A thin vascular membrane of connective tissue that lines the inner surface of the bony tissue that forms the medullary cavity of long bones.

Membrane

A thin layer of tissue or material that acts as a selective barrier, controlling the passage of substances in and out of cells or organelles.

Fontanels

Soft spots on a baby's skull where the bones have not yet fused, allowing for growth of the brain and skull during infancy.