<em>Hi,</em>
Answer:
<em>In this scenario, Anita is most likely suffering from</em> nutritional toxicity.
Can you edit it so I can answer your question please
Answer:
The correct option is : a. causing threshold to be reached more quickly
Explanation:
Norepinephrine, also known as noradrenalin, is an organic compound, which belongs to the catecholamine family. It acts as a hormone and a neurotransmitter in the brain and the body and also impacts the heart.
It is one of the hormones secreted by the adrenal medulla. Norepinephrine is a part of the fight-or-flight mechanism of the body. It acts by binding to the β-1 receptors and opens the chemical or ligand gated calcium and sodium ion channels. Therefore, <u>it causes the threshold to be reached faster </u>by increasing the rate of depolarization and thus causes heart arrhythmia.
Therefore, <u>Norepinephrine acts on the heart by </u><u>causing threshold to be reached faster.</u>
Comparisons of the aging theory scientist made by the scientist
:
In the early age the scientist assumed that aging is the process in which the wear and tear of cells occurs and this results in the process of aging. When our body functions for longer period the cells tends to wear out due to the continuous usage for a longer period.
The rate of living theory assumes that how faster an organism consumes oxygen the quicker the cells wore out and result in aging process. There are also several other theories which discuss in brief about the aging process.
