What is the breathing organ of bear?
The respiratory system uses the lungs, blood, heart, veins and arteries to take in oxygen, transport it around the body and breathe out carbon dioxide. polar bear can close off its nose, in order to stop water from entering it when swimming.
How does the bear breathe?
Hibernating bears only breathe one to two times per minute and their heart slows between breaths; sometimes there is 20 seconds between beats. “When the bear breathes out, the heart slows down again and there will be another 30 to 60 seconds until the next breath.”
What are the respiratory organs in creatures?
The lower airways include the trachea, bronchi, bronchioles, and alveoli. The primary function of the respiratory system. It is comprised of the upper and lower airways. The upper airway includes the nose, sinuses, and pharynx.
What is meant by respiration Class 7?
Respiration is a biological process within the living organisms, where the storage food is oxidised in the presence of oxygen and releases carbon dioxide from the system to provide energy to the cells in the body to continue the body functions. This is called cellular respiration.
Do bears hibernate or torpor?
However, not many animals truly hibernate, and bears are among those that do not. Bears enter a lighter state of sleep called torpor. Hibernation is a voluntary state an animal enters to conserve energy, when food is scarce, and minimize exposure to the winter elements.
What kind of respiratory system does a polar bear have?
Polar Bears. A polar bear’s respiratory system is similar to that of any other mammal. The respiratory system uses the lungs, blood, heart, veins and arteries to take in oxygen, transport it around the body and breathe out carbon dioxide.
How is the circulatory system shared by humans and bears?
Most of the main features of the circulatory system are shared by both bears and humans. This includes the basic framework of the heart, arteries, veins, and capillaries. Both in bears and humans the circulatory system is vital to the survival of the organism, it helps move nutrients, oxygen, waste, and white blood cells around the organism.
Why is the nervous system so important to bears?
The nervous system is the most important system along with the endocrine system to helping maintain homeostasis in an organism. Most of the main features of the nervous system are shared by both bears and humans. This includes the basic framework of the CNS (Central Nervous System) and the PNS (Peripheral Nervous System).
Where is the skeletal tissue located in a bear?
But in bears, the skeletal tissue is found further away from the bone than in a human. This allows the bear to have very strong movements but this structure also makes the bear slower, while in humans the skeletal tissue is found near the bone allowing for weaker and faster movements. Black Bear Muscular System Black Bear Muscular System (Labeled)