The law of conservation of energy basically states that energy a\cannot be created or destroyed, therefore if it disappears in one form it must reappear in another (answer C.)<span />
The right option is d. Perimenopause
Perimenopause is the transition
phase between regular menstrual periods and no periods at all. It takes place
over several years in advance of the menopause. Perimenopause generally starts
for women in their mid-40s and it can start even earlier. Symptoms of Perimenopause include fatigue, breast
tenderness, irregular periods and mood swings.
Explanation:
<u>-how long it takes for the voltage-gatedNa+ channels to close at the end of an action potential</u>
Neurons have unique structures which aid in facilitating communication by sending and receiving electrical signals very efficient.
The refractory period describes a period between the initiation of an action potential where Na+ channels are closed, and immediately after the action potential’s peak. Action potentials would require an influx of more positively charged ions; these must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.
Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more Na+ than K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential.
Learn more about the autonomic nervous system at brainly.com/question/10386413
Learn more about neurotransmitters at brainly.com/question/9424160
Learn more about homeostasis at brainly.com/question/1601808
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