Polar Bears

Polar bears live in the Arctic region, but not specifically at the North Pole. The largest populations of polar bears are in western Canada in the Northwest and Yukon Territories and in northern Alaska. Most polar bears live in North America.

They are mammals and have sex in the normal fashion for mammals. The Pregnant Polar Bear may seek out shelter on an Ice Floe ( a sort of mini-berg) failing this they might retreat in Ice Caves. It has been said they will conceive and the embryo will grow while in hibernation, but this does not affect they way they perform the sexual act. Polar Bears are the most aquatic of the non-adaptive Marine Mammals ( excluding fully-waterborne Whales, seals, etc.)

Plants that grow in polar bear habitats include mosses, lichens, grasses, sedges, willows, and dwarf shrubs like Arctic willow and Arctic cottongrass. These plants are adapted to the cold, harsh conditions of the Arctic and subarctic regions where polar bears live.

Polar bears are adapted for cold temperatures and rely on sea ice to hunt for seals. In warm conditions, they may struggle to find food and can overheat due to their thick fur. With diminishing ice due to climate change, polar bears face challenges in their natural habitat.

The depletion of the ozone layer increases UV radiation levels, which can lead to skin cancer, cataracts, and impaired immune systems in polar bears. UV radiation can also harm the plankton at the base of the food chain, which in turn affects polar bears' prey availability and ultimately their survival.

• Being hunted to death by man. A number of polar bears are allowed to be hunted in some of the countries where bears live.
• Global warming. Sea ice is melting in the Arctic more and earlier each year, preventing polar bears from building up enough fat (from catching seals) to last through the lengthening summers.

Yes, polar bears are obligate carnivores, which means they primarily rely on a diet of meat and fish to meet their nutritional requirements. Their diet consists mainly of seals and other marine mammals.

An adult polar bear's bite force is estimated to be around 1200 pounds per square inch (psi), which allows them to easily crush through bone and thick ice to catch their prey like seals. This powerful bite force is essential for their survival in the harsh Arctic environment.

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.

The light at the North Pole is generally the natural light from the sun when it is above the horizon during the summer months. In winter, the North Pole experiences polar night where the sun does not rise for several months, resulting in darkness. However, the moon and stars can still provide some illumination.

Polar ice ecosystems are sustainable due to the incredible insulation provided by the ice, shielding animals from extreme cold. Many species have adapted to these harsh conditions with specialized physical features like thick fur or blubber to retain heat. Additionally, the abundant food sources in the form of fish, seals, and other marine life help support the diverse range of animals in these ecosystems.

The polar sea ice is shrinking each year. Each year the winter sea ice melts faster. Polar bears need to bulk up in winter by eating seals. Now they have a shorter time for feeding. The Hudson Bay bears are forced onto the land during summer where they compete for food and living space with humans and other animals. Food shortages mean that bears are weaker, fewer cubs are born and those that do are more likely to die.
its melting the ice at the poles, destroying the bears homes

Polar bonds do have a partial positive and partial negative charge on the atoms involved. The more electronegative atom attracts electrons more strongly, resulting in an uneven distribution of charge.

Some examples of extinct marine mammals include the Stellar's sea cow, the Caribbean monk seal, and the Japanese sea lion. These species were primarily impacted by overhunting, habitat loss, and changes in the marine environment due to human activities.

Resistors do not have polarity restrictions because they are passive devices that limit the flow of electric current. You can connect them in any orientation within an electric circuit without affecting their function.

Polar bears have a thick layer of fat called blubber. Camels have a fat store in their hump that allowes them to go for days at a time with out food of water, camels also have extra stomaches in which to store plenty of water..

Polar bears live at the north pole, camels in the desert.

Polar bears have a thick layer of oily fur to repel water, they are also very good swimmers.. The polar bear can jump right in the icey water and catch a fish, his long claws help him hold on to said fish, and to walk on the ice.

Polar bears claws can grow as long as 7to8 inches and longer depending on the size of the bear.

Considering its carnivorous nature and general lack of fear of people, the only reasonable way to weigh a polar bear is to first tranquilze it and weight it in a sling weighing apparatus - something like the one at http://www.betterbarnyard.com/slings/ but larger - and with more legs or perhaps the one mentioned in the patent at http://www.freepatentsonline.com/4550686.html. The sling is slid under the tranquilzed animal, and the animal is raised off the ground with a winch attached to the weight gauge - which has to have a high capacity to handle an animal as heavy as a polar bear. The whole frame, winch, sling, and weight gauge would have to be carried by the heading out to make the measurements.

It is difficult to get an accurate count of polar bears. Estimates in the 1950s and 1960s came from hunters and Inuit reports, which were very local. The invention of the snowmobile and modern icebreakers meant that by the 1970s hunting of polar bears had reduced the population to about 10,000.

In 1973 hunting of polar bears was banned world-wide, except for native peoples, who had quotas set. This led to an increase in numbers. Scientists estimate the present population to be about 22,000 worldwide, of which 60% are in Canada.

There are nineteen Polar Bear groups around the Arctic Circle. At the 2005 IUCN (International Union for the Conservation of Nature) Polar Bear Specialist group meeting, scientists reported that 5 of these groups of bears were declining in numbers, 5 groups were stable, 2 groups were increasing in numbers and 7 groups didn't have enough data to know.

The Report from the IUCN 2009 meeting found that 8 groups were declining in numbers, 3 groups were stable, 1 group was increasing in numbers and again, 7 groups didn't show enough data.

Yes, Atlantic Puffins do live in Canada. They are commonly found in Atlantic Canada, specifically in provinces like Newfoundland and Labrador. They breed on coastal cliffs and islands in this region.

The pituitary gland secretes hormones that help regulate growth. When it stops producing certain hormones, you stop growing.

There can be problems with being too large, so humans have evolved over time to have the proper amount of hormones produced (which can vary a bit). People with malfunctioning pituitary glands, can have a variety of problematic growth disorders.

yes it is the bond is polar, and the linear shape allows for polarity, F is negative