Answer:
Voltage-gated membrane channels open, and Ca+2 enters the cytoplasm, increasing intracellular calcium
Explanation:
The neurotransmitters in the neurons are stored in the synaptic vesicles in the synaptic knob present at the axon terminal.
The neurotransmitters are released when the action potential reaches the axon terminal and opens up the voltage-gated calcium channels. The calcium channels allow the entry of the calcium from the synapses and this causes the release of the synaptic vesicles which fuses with the cell membrane. This fusion releases the neurotransmitter in the synapse.
The answer B I hope this help you
Answer: 500 feet
You must yield the right-of-way to any fire engine, ambulance, or other emergency vehicle flashing red lights. Drive to the right edge of the road and stay at least 500 feet behind any moving fire truck or ambulance. Do not go nearer to them nor stop in the intersection.
Answer:
The most correct answer would be "all individuals exposed to cold temperatures".
Explanation:
Body fat can be divided into white fat and brown fat.
White fat cells (adipocytes) have a <u>single lipid droplet</u> and this fat is a result of an excess of calories. White fat, when storage around abdominal area, increases cardiovascular risk. Therefore, an <em>obese person has a great proportion of this type of fat.
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On the other hand, brown fat has <u>many lipid droplets</u> and <u>mitochondria full of iron</u>, which give its brown color. Brown fat is useful to generate heat, it does so by burning calories. This type of fat can usually be found in adults in the back of the neck and above the collarbone and its amount <em>decreases with age. </em>