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Your question is unclear. If you mean what do they look like, they are similar to plant cells except for the shape (often circle) and they bear no second cellular wall, or photosinthesis elements. They also bear a nucleus.
When the American Black Bear is breathing out CO2 it goes through the alveoli, bronchioles, bronchi, trachea, larynx, and finally to the nasal cavity. ... The bronchi are the tubes leading into the lungs. The bronchioles are located in the American Black Bear's lungs, where the gas exchange happens
The energy pyramid of a bear is what all of the bears eat and a bear is a carnivore
Simple answer:Under the condition of strenuous exercise with inadequate oxygen supply. ;DComplicated answer:When your muscle cells are asked to perform work at an easy relaxed pace they take in glucose, fructose or sucrose plus oxygen from the blood, and using the "Aerobic Respiration" method, they generate cellular motion energy without releasing lactic acid.Read more about that amazing process here:http://en.wikipedia.org/wiki/Cellular_respiration#Aerobic_respirationHOWEVER when your muscle cells are asked to perform strenuous work at an over-extended pace, (like your running away from a bear who wants to eat you). Then the oxygen becomes in short supply. There is not enough oxygen supplied by the lungs to increase output under the "Aerobic Respiration" method.So, the muscle cells, knowing that they will die if they don't produce more energy, have a Plan - B. They can create massive amounts of energy without oxygen with the drawback of creating lactic acid. But that's fine, they will clean up that mess later. They start using an "Anaerobic Respiration" method.Read more about that here.http://en.wikipedia.org/wiki/Anaerobic_exerciseThe muscle prefers to make energy using "aerobic methods", but in extreme situations, your muscle cells have a "turbo" option: "Anaerobic_respiration".This Scientific American Article answers your question:http://www.scientificamerican.com/article.cfm?id=why-does-lactic-acid-builAnd read this:http://en.wikipedia.org/wiki/Lactic_acid_fermentationAnswer #2:Your muscle cells will undergo lactic-acid fermentation (Creating cellular energy anaerobically) when there is not enough oxygen in the blood to create cellular energy in the preferred aerobic way.
Grizzly bear
Well the gummy bear is NOT made with a bear it is made out of different materials.
A teddy bear can not get pregnant. The teddy bear is full of stuffing and materials. So it is not possible for a teddy bear to get pregnant.
Black bears are mammals, they have lungs, so they breathe just like we do.
i think its a panda bear
Whether or not you can gain a license to bear arms in Texas after a crime, depends on what you were convicted of. If it was a felony, you can't bear arms, legally.
The digestive and circulatory system
No animal can breath in Space but the Water Bear can survive 10 days in space.
Water Bears, or Tardigrades, have bodies made up of around 40,000 cells.
Yes a bear will eat flesh but it is actually an 'omnivore' its diet also includes fruits and some plant materials.
The weight of a bear trap can be as little as 24 pounds or as much as 40 pounds. It all depends on the brand, style, size, and materials.
Smokey Bear is a campaign that was started in the 1940's to inform people about the prevention of forest fires. The best resource available to obtain information is from the Smokey Bear website.
Your question is unclear. If you mean what do they look like, they are similar to plant cells except for the shape (often circle) and they bear no second cellular wall, or photosinthesis elements. They also bear a nucleus.