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stiks02 [169]
3 years ago
10

When DNA is duplicated during mitosis:

Biology
1 answer:
Elena-2011 [213]3 years ago
5 0
One completely new DNA molecule is formed it’s almost like having a baby
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If the first low tide occurs at 5:10 a.m. on Friday when will the next low tide occur​
jonny [76]

The correct answer is - 5:35 PM on Friday.

The low tides, as well as the high tides, occur two times in a lunar day, on exactly every half a lunar day passed. A lunar day is 24 hours and 50 minutes long, so every next low tide, or high tide, appears after 12 hours and 25 minutes after the previous one. In this situation we have a low tide that has appeared at 5:10 AM on Friday, so in order to calculate when the other low tide will appear we need to add 12 hours and 25 minutes on it, and that will gives the information that the next low tide will appear at 5:35 PM on Friday.

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3 years ago
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Mila [183]
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The graph shows that if Jenna walks for hours, she will walk miles.
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This reaction releases energy as heat explain whether the reaction is exothermic or endothermic and whether it obeys the law of
galina1969 [7]
Exothermic and it does follow the law of conservation of energy.
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Nicotine from cigarette smoke acts as a ligand and associates with the acetylcholine receptor on specific cells in the nervous s
Vitek1552 [10]

Answer:

The correct order of events is:

C) Nicotine binds to the transmembrane protein that normally binds the neurotransmitter acetylcholine.

A) The acetylcholine receptor is an ion channel, and when a ligand binds, the ion channel opens.

B) An influx of ions carries the signal to the reward areas of the brain.

D) The signal causes release of dopamine in the brain, which causes good feelings.

E) Nicotine is quickly eliminated from the body (causing cravings for more cigarettes to produce good feelings).

Explanation:

Nicotine acts on acetyl cholinergic receptors that are located in membranes of the midbrain neurons. Nicotine can activate those receptors or block them more efficiently than acetylcholine.   Stimulation of nicotinic receptors leads to an increase in ions flow that reaches the brain and causes dopamine release in the nucleus accumbens through axonal prolongations of the dopaminergic pathway. This response is responsible for the smoker´s recompense sensation.

The dopaminergic pathway is the most important way in the process of nicotine dependence and addiction to the drug.  

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3 years ago
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