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Explain process to Control of Breathing?
The rate of breathing is controlled by the medulla, the segment of brain stem just above the spinal cord. If the brain stem is cut just above the medulla, the basic breathing mechanism is left intact. The level of oxygen, or pO2 , provides little feedback information, but excessive carbon dioxide in the air causes breathing to become deeper and more rapid, even in the presence of excess oxygen. In extreme situations of oxygen depletion, chemosensors located on the large blood vessels leading to the heart, the aorta, and carotid arteries send impulses to the respiratory centers, causing an increase in respiratory rate.
Muscle cells have another oxygen-carrying molecule called myoglobin, which consists of only one polypeptide chain with an iron-containing structure that binds one molecule of oxygen. This molecule serves as a reserve for periods of high oxygen demand in certain muscles. The energy required for the body to maintain life processes while at rest is called the basal metabolic rate, or BMR.
2. Vaccinations against various childhood diseases have contributed to the entry of women, particularly mothers, into the fulltime workplace. a. Is this statement supported by data
The atomic number of argon is 18. Will argon tend to form bonds with other elements? Describe your answer. Argon will not tend to form bonds with other elements. With an atomi
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Two-Kingdom Classification The history of taxonomy is as old as man himself. It may be traced back to prehistoric times because man had learnt to designate living organisms by
Q. What is the difference between spermatocyte II and spermatocyte I? The spermatocyte I (2n) undergoes the first division of meiosis (meiosis I) originating two spermatocyte I
Healthy Person H takes a new drug named ANTICAMPCOLLDUCT that blocks the production of cyclic AMP (cAMP) in collecting duct epithelial cells in response to vasopressin binding to V
Compare and contrast acids and bases in terms of their H+ ion and OH- ion concentrations.
Write down any other possible explanations you think of.could the cooler have had any effect? Could something in the water be reasonable? Could there be an object in the water that
Advanced Nervous Systems - General Trend In Evolution In higher groups of animals you will observe clear trends towards centralisation of the nervous system, to maximize effe
what so special for phylum annelida
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