ANIMAL ADAPTATIONS

3. (of land or a climate) having little or no rain; too dry or barren to support vegetation.
10. done or existing alone
11. a muscular, thick-walled part of a bird's stomach for grinding food, typically with grit.
12. a large flightless fast-running Australian bird resembling the ostrich, with shaggy grey or brown plumage, bare blue skin on the head and neck, and three-toed feet.
13. a homeostatic process that maintains a steady internal body temperature despite changes in external conditions.
14. relating to the branch of biology that deals with the normal functions of living organisms and their parts.

1. relating to or forming part of the structure of a building or other item.
2. the process of change by which an organism or species becomes better suited to its environment.
4. shining with a soft, slightly wavering light.
5. involving, relating to, or emphasizing behaviour.
6. drive or push something forwards.
7. being the only one of its kind; unlike anything else.
8. of very great extent or quantity; immense.
9. the process of digesting food