<span>Circulating throughout the body, adh arrives at the nephrons of the kidneys, Nephrons are the basic microscopic functioning unit of the kidneys. Our kidneys consist of millions of nephrons.
ADH stands for anti-diuretic hormone and it is also known as vasopressin and  it is secreted by the pituitary gland and it helps the kidney to maintain the water in the body.</span>
        
             
        
        
        
Aristotle classification
He classified plant and animals into two separate kingdoms
Modern Classification
In this system also, there were two separate kingdoms for plant and animals
 
        
                    
             
        
        
        
They survive without water by entering a special mode, otherwise called as shriveling. They can lose even 95% of water in their body and still live, even though they would look like dead plants, they would actually be alive. In the absence of water, tardigrades use a sugar called trehalose, which becomes their source of life until they find some water.
        
             
        
        
        
Induced depression of single neurons in brain areas with opiate receptors
- Enkephalin, applied microiontophoretically, depressed spontaneous and glutamate-induced firing of  one neuron in frontal cortex, caudate nucleus, and periaqueductal gray matter, where enkephalin and high concentrations of opiate receptors are met.
- More than one depressions were blocked by the specific narcotic antagonist naloxone. The results  are durable with a neurotransmitter or neuromodulator role for this new brain pentapeptide.
- Opium derivatives have been in medical use for the last  2000 years, and may be   longer than any other class of drugs
- . The brain regions which was  involved in these actions have been identified in some instances by local microinjection of pmole quantities of opioids.
To know more about neurons    visit : brainly.com/question/24217914
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Answer
La corteza terrestre temprana apareció hace aproximadamente 4.500 millones de años, después de las últimas etapas de acreción planetaria.