If You Were Lost in Unfamiliar Territory, How Could You

question 27

Essay

If you were lost in unfamiliar territory, how could you make a compass for navigation?

---

Definitions:

Hemorrhage

The escape of blood from a ruptured blood vessel, which can occur internally or externally.

Red Blood Cells

The cells in the blood responsible for carrying oxygen from the lungs to the body's tissues and returning carbon dioxide back to the lungs.

Osmosis

The movement of water molecules through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.

Concentration Gradient

A difference in the concentration of a substance from one point to another, as for example, across a cell membrane.