Polar bears have a closed circulatory system(like humans) this means thier blood flows through veins and ateries to diliver oxygen around the body
All creatures have circulatory systems
A polar bear's circulatory system functions similarly to that of other mammals. Its heart pumps oxygen-rich blood to the rest of the body through arteries, while veins return oxygen-poor blood to the heart for re-oxygenation. Polar bears have adaptations like a dense layer of blubber to keep warm in cold Arctic temperatures and specialized blood vessels in their legs to prevent heat loss.
polar bears are related to bears.
Polar bears do.
They reproduce.
POLAR BEARS Polar bears actually grow pretty fast.
Polar bears are mammals.
humans are polar bears
Polar bears are bears
A sleuth or a sloth of bears
There are no polar bears in Antarctica. If there were, they would eat the penguins.
Polar bears are animals of Arctic regions. The only polar bears here are in the NC Zoo.