It consists of two main parts. The peripheral and central. The central nervous system consists of the brain and spinal cord, while the peripheral has mainly nerves. The PNS has enclosed bundles of axons that connect to the brain as well as the rest of the body. Sorry, I'm a science nerd.but hope this helps buddy.
The possible energy sources for muscle contraction from the list include:
<h3>What is Energy?</h3>
This is referred to as the ability to do work and the major fuel in the body is referred to as glucose.
Glycogen in muscles also acts as a fuel although its synthesis is usually very slow.
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The protons are pumped across the inner mitochondrial membrane from the inner matrix to the intermembrane space by the energy employed in the electron transport chain, creating a significant gradient in the hydrogen concentration. When it was discovered, this process was known as chemiosmosis.
<h3>The inner membrane is what?</h3>
The inner or cytoplasmic membrane controls the flow of nutrients, metabolites, macromolecules, and information into and out of the cytoplasm and preserves the proton motive force necessary for energy storage. It is impermeable to polar molecules.
<h3>What use does the intermembrane serve?</h3>
Proteins that are essential for mitochondrial energetics and apoptosis are found in the intermembrane region between the outer and inner membranes (process of programmed cell death). The inner membrane is significantly less permeable to ions and molecules than the outer membrane.
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Answer:
Cost : The expenditure incurred by a producer on the factor as well as non-factor inputs for a given amount of output of a commodity.
Answer:
Melatonin
Explanation: melatonin in the body is a natural hormones that helps in the regulations or coordination of the cycle of our sleeping and waking. It is found in the pineal glad and it is more active during night time than day time.
Teenagers most especially has different time of sleep they sleep mostly late during weekends and sleep early during weekdays.our body needs sleep so as to function properly and most times our body is also adapt to some times that we sleep. Melatonin is usually release in the body gradually around 9pm in the evening where it initiate sleep but in some people, it is when the hormones is release in an increase dose that they can fall asleep thereby shifting the time to about 11pm or 12pm before the person can fall asleep for quick sleep, melatonin supplement are used.
