An ion. When it loses electons, a positive ion is formed. When it gains electons, a negative ion is formed.
<span>Norepinephrine uses the Second
Messenger System, which means, cells signal to each other what molecules have
been released that will trigger a physiological reaction. </span>
<span>
This phenomenon is activated after the ligand (ion or molecule) is bonded to its receptor
(protein molecule), creating a variation that causes a chain-reaction, that will
finally activate the Second Messenger. The latter will activate intercellular
molecules that will be able to control the cell’s activity. </span>
It allows them to be flattened on a microscopic slide, so that the chromosomes of individual cells can be observed easily.
The five parts of the cell cycle are as follows: telophase, interphase, prophase, metaphase and anaphase. It ends with chromatids becoming separate chromosomes.
Answer:
Breathing would stop.
Explanation:
Respiratory centre is the group of neuron located in the brain mainly in the pons and medulla. In the medulla, there is two types of neuron group: the dorsal and the ventral group of neurons.
The ventral group of neuron in medulla controls the muscles involved in the inspiration and expiration of the lungs.
Since the inspiration and expiration are associated with the breathing mechanism therefore if the ventral neurons will be destroyed then the breathing would stop.
Thus, the selected option is correct.