Table of Contents
What type of cells do polar bears have?
All polar bears have nerve cells, blood cells, muscle cells, and skin cells. These cells are the basic cells that they have. The number of cells that a polar bears has depends on its size. Polar bears are the largest land carnivores and they have black skin and colourless hair.
Is a polar bear an animal or mammal?
marine mammals
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.
Do polar bears need plants?
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.
How does carbon end up in a polar bear cell?
It might be tough at first but by the time you’re done you should be able to tell how carbon in peanut butter can end up being a part of a cell in a polar bear. Living things (past and present) all contain carbon. When plants or animals die they can become part of the soil. Decomposers can eat the plants or animals and produce carbon dioxide.
What kind of DNA does a polar bear have?
The mitochondrial DNA found in polar bears today was probably inherited from a brown bear female that hybridized with polar bears at some point in the late Pleistocene. Whether polar bears will be able to survive the current phase of sea ice melting is not clear.
Is the anatomy of a polar bear a work in process?
There is no doubt by researchers that the Polar Bear anatomy has been a work in process over millions of years. They also assume it will continue to change to adapt to their current environment.
What was the ancestor of the polar bear?
Last year we reported that researchers examining the mitochondrial DNA of the polar bear uncovered evidence indicating that the ancestor of polar bears was a brown bear that lived some 150,000 years ago, in the late Pleistocene.