Answer:
A. If the aerobic pathway—cellular respiration—cannot meet the energy demand, then the anaerobic pathway—lactic acid fermentation—starts up, resulting in lactic acid buildup and "oxygen debt."
D. The rate of energy demand determines how the muscles will obtain energy, either from cellular respiration or from lactic acid fermentation if not enough oxygen is present.
Explanation:
It is important to consider that Kenny hikes all day but at a steady pace, whereas Janelle runs very fast. So Kenny's case, the supply of oxygen is sufficient to maintain aerobic respiration within the muscle cells. During this process only CO2, Water, and ATP are produced; therefore, there is no oxygen debt. We should keep in mind that the body shifts to anaerobic metabolism only when the supply of oxygen is limited.
In Janelle's case, running fast would need energy at higher rates and the supply of oxygen would not be sufficient to generate a high amount of ATPs. Therefore, to compensate for this deficiency, cells will start fermenting glucose to lactic acid and produce ATP and maintain energy demands. This lactic acid causes fatigue and this is why Janelle has aching and breathing hard. Breathing hard is also automatic reflux to inhale more oxygen and meet oxygen demands but even breathing hard would not be able to make it and the body will shift to anaerobic respiration automatically.
The total blockade comes with the biggest potentially fatal complication of an epidural or intrathecal anesthesia. Many women choose this type of spinal epidural or intrathecal anesthesia during labor to block all labor pains. The primary symptom is hypotension. Hypotension is low blood pressure. Nausea is usually the first symptom of hypotension. A nurse will be able to intervene when the vital machine shows the blood pressure dropping. This why hospitals always have someone connected throughout labor to a vital signs machine when having an epidural or intrathecal anesthesia.
Due to extreme (too much) cell division, a mutation of cells will occur and that is the cancer within humans.
Hey there!
Here is a paraphrased version of the text:
Objects that are nonliving never had the qualities of life, and never will. Things that are dead did have an experience to have the qualities of life, but then they eventually die, they fail to keep some of the characteristics. So in science, dead is not an identical word to nonliving. A rock is nonliving, a fallen tree is dead, and a moose is living.
Note: While paraphrasing a text, a good thing to do is to think of as many synonyms of the words in the text as you can.
Hope this helps you.
Have a great day!
