Answer:
The correct answer is option b. "Alpha eventually replaced by theta". 
Explanation:
Electroencephalogram (EEG) techniques allows researchers to monitor the phases of sleeping according of what brain waves are seen in the equipment. A normal adult connected to EEG will respond with alpha waves during a wakeful state. However, as the person becomes drowsy and enters to the first stage of sleep, the alpha waves will be eventually replaced by theta waves. Theta waves are the dominant waves during sleeping, and also could be seen during deep meditation.
 
        
             
        
        
        
Answer:
I'm so confused but agreed ig ?
 
        
             
        
        
        
What do you mean <span>It has been observed that certain species of insects which had not previously caused significant harm have become serious pests. the best explanation for this phenomenon is that the pesticide killed off predators which had previously held this species in check. a mutation occurred in the species. the pesticide increased the vigor of the species. was able to be used by the pest as an additional food source is also a reproductive for some insect species. </span><span />
        
             
        
        
        
Answer: 
Sky Cover. The total amount of clouds in tenth. Plotted in the station circle according the ... The wind speed is plotted as feathers and half-feathers representing 10 and 5 knots, ... For values above 10 miles, the values are omitted from the map.
Explanation: