POLAR BEARS ANIMAL KINGDOM The polar belongs to

POLAR BEARS

ANIMAL KINGDOM The polar belongs to the animal kingdom. Some characteristics of the animal kingdom are: That they are multicellular. § That animals are heterotrophic, obtaining their energy by consuming energyreleasing food substances. § They typically reproduce sexually. § And that are made up of cells that do not have cell walls. §

PHYSICAL DESCRIPTION Polar bears are stocky, with a long neck, relatively small head, short, rounded ears, and a short tail. The male, which is much larger than the female, weighs 410 to 720 kg. It grows to about 1. 6 meters tall. BEHAIVOUR ADAPTATIONS: Polar bears has dig dens to protect themselves from cold winds. The ability to be a strong swimmer help with hunting and swimming through ice. The white fur of the polar bear helps it blend in with the snow and ice.

CELLS Polar bears have: Blood cells, skin cells, bone cells and white blood cells. ITS PARTS ARE: The cell membrane, the centrosome, the lysosome, the cytoplasm, the nucleus, the rough ER, the nucleolus, the smooth ER, the nuclear membrane, the ribosomes, the vacuole, the golgi body, and the mitochondrion Tissues are groups of cells that . have a similar structure and act together to perform a specific function Organs are the body's recognizable structures that perform specific functions A system is a set of things working together as parts of a mechanism or an interconnecting network.

HABITAT Polar bears live in countries that ring the Arctic Circle: Canada, Russia, the United States (in Alaska), Greenland Norway In the winter, temperatures in the Arctic are usually around minus 29 degrees and can reach as low as minus 92 Some animals that live in the polar bear habitat are: The arctic wolf, the arctic fox, the arctic hare, the brown and the snowy owl.

NUTRITION q Polar bears are carnivores and get most of their nutrition from some type of meat. q Polar bears are consumers. q Polar bears obtain food by hunting.

REPRODUCTION Polar bears reproduce sexually. Some differences between the polar bear babies and its parents are: ü Polar bear babies are very small (about 30 cm). ü Polar bear babies have a very thin fur. ü The diet.

INTERACTION Polar bears interact with little other animals, other than to prey upon them. The Polar Bear has a Mutualistic symbiotic relationship with Arctic Foxes.

CURIOSITIES Ø Polar bears are classified as Ø Ø marine mammals. Polar bears are actually black, not white. They can smell their prey up to a kilometer away Male polar bears can weigh as much as ten men. Scientists can extract polar bear DNA from just their footprints.