Are polar bears an organism?

Polar bears, like all other animals are eukaryotic, multi-cellular organisms. They are heterotrophic, meaning that they get their food and energy from consuming other organisms. Animals also lack cell walls and are motile.

What type of organism is a polar bear?

Polar bears are classified as marine mammals

Because they spend most of their lives on the sea ice of the Arctic Ocean depending on the ocean for their food and habitat, polar bears are the only bear species to be considered marine mammals.

Are polar bears multicellular organisms?

The Polar bear is multicellular organism because it is a mammal and has more that one cell.

Are polar bears part of the ecosystem?

As one of the largest land carnivores in the world along with grizzly bears, polar bears are known as a keystone species, the apex of the ecosystem. They keep biological populations in balance, a critical component to a functioning ecosystem. 2. They’re also a sign of health for the ecosystem.

Is a polar bear an aquatic animal?

The polar bear is the only bear considered to be a marine mammal. It is only partially aquatic though, and the least aquatic of all marine mammals.

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Do polar bears eat humans?

Bears. Polar bears, particularly young and undernourished ones will hunt people for food. … Truly man-eating bear attacks are uncommon, but are known to occur when the animals are diseased or natural prey is scarce, often leading them to attack and eat anything they are able to kill.

What animals can kill a polar bear?

Adult polar bears have no natural predators, though walruses and wolves can kill them.

What do you call a female polar bear?

Polar Bears and Their Families. Pregnant females polar bears (called sows) build snow dens. Give birth to 1-3 cubs. Cubs are born 12 to 14 inches long and weigh little more than a pound. They are blind, toothless, and covered with short, soft fur.

Do polar bears have Endoskeleton?

Polar bears have an increased complexity as well as an enhanced nervous system. U. Maritimus is one of 43,000 species included in the subphylum vertebrata (Gotch, 27). … This structure is made up of a number of vertebrates which are fused together and connected to the remaining endoskeleton.

Is a human multicellular or unicellular?

As well as humans, plants, animals and some fungi and algae are multicellular. A multicellular organism is always eukaryote and so has cell nuclei. Humans are also multicellular.

Do polar bears eat penguins?

Polar bears do not eat penguins, since penguins live in the southern hemisphere and polar bears live in the northern hemisphere.

How do polar bears affect humans?

As powerful predators, polar bears pose a major risk to human life and property. Throughout the polar bear’s range, attacks on humans and property continue to rise. In recent years, more than 20 direct attacks on humans have been reported within the polar bear’s range.

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Do polar bears live in Antarctica?

Polar bears live in the Arctic, but not Antarctica. Down south in Antarctica you’ll find penguins, seals, whales and all kinds of seabirds, but never polar bears. Even though the north and south polar regions both have lots of snow and ice, polar bears stick to the north. … Polar bears don’t live in Antarctica.

What are the most dangerous bears?

Grizzly and polar bears are the most dangerous, but Eurasian brown bears and American black bears have also been known to attack humans.

Do polar bears eat fish?

Food Preferences & Resources

When other food is unavailable, polar bears will eat just about any animal they can get, including reindeer, small rodents, seabirds, waterfowl, fish, eggs, vegetation (including kelp), berries, and human garbage.

Do orcas eat polar bears?

PREY: The orca is at the top of the marine food web. Their diet items include fish, squid, seals, sea lions, walruses, birds, sea turtles, otters, other whales and dolphins, polar bears and reptiles. They even have been seen killing and eating swimming moose.

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