1. Physical Adaptations STRUCTURAL

2. CASE STUDY: Polar Bear AdaptationFunction (how does it help the animal?) Long, stiff hair between pads of bear's feet Protect bear's feet from the cold Provides traction on the ice Help the bear swim in cold, icy water Also helps to keep bear from slipping on the slippery ice

3. CASE STUDY: Polar Bear AdaptationsFunction (how does it help the animal?) Small rounded earsPrevents water from entering the bear's ears and freezing their eardrums- (big ears, more water!) Helps conserve body warmth in sub-zero temperatures Hollow FurTraps air inside, thus making the bear buoyant in water The layer of air provides insulation between their warm bodies and the cold Arctic air and water Insulation provided is lost when fur is covered with oil

4. AdaptationsFunction (how does it help the animal?) Light colour of bear's fur Provides camouflage against the ice - When hunting, bear covers black nose with its paws to hide it Thick layer of fat (blubber) under skin Up to 11 cm thick Insulates bear from arctic cold Overheating might occur Skin under fur is blackThis is to ensure that the polar bear keep more heat for longer. CASE STUDY: Polar Bear

5. CASE STUDY: Koala AdaptationFunction (how does it help the animal?) Big, black noseKoalas are heavily dependent on their sense of smell. The organisms need a keen sense of smell to determine if the eucalypts leaves that they intend to eat are poisonous or not. Claw padsHelp koalas climb but providing better grip. Long sharp clawsHelp the koala climb Allow the koala to groom its fur

6. CASE STUDY: Koala AdaptationsFunction (how does it help the animal?) Dense wooly coatThe coat efficiently protects them from hot and cold conditions. The coat is also water resistant to fend off most moisture when it rains. The fur on their rumps is used for padding because of the hard branches it constantly sits on. The combination of white and gray, sometimes brown, fur has properties of camouflage.

7. CASE STUDY: Camel CASE STUDY: Cacti http://www.vtaide.com/png/camel-adaptations4.htm