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.
<h2>Answer:</h2><h3>Lilies do best in a position of full sun, ideally with their roots in rich and fairly moist, yet free-draining soil or compost. Grow oriental lilies in acidic soil or ericaceous compost, and Asiatic lilies in neutral to alkaline soil or multi-purpose compost and not in gardens because most Garden soils are made from three main components: clay, sand and silt. The ideal soil (or loam) has equal amounts of all three, making a fertile soil that is free draining and easy to dig.Which are nothing but making the sand more rougher.So therefore those lillies will not grow in the garden soil and that is the reason why the lillies never grew</h3><h3 />
Salt water
sand and water
vinegar
this next one is for CEMENT
Concrete is a heterogeneous<span> (composite) material consisting of </span>cement<span>, water, fine aggregates and coarse aggregates. ... Otherwise it is a </span>heterogeneous<span> material.</span>Cement<span> may be called a </span>homogeneous<span> material. But concrete is not.</span>
Answer;
The nucleus.
Explanation;
-The nucleus is the cell organelle whose function resembles the function of the brain in higher animals.
-The Nucleus is the largest organelle in a cell. It contains a dense structure called the Nucleolus and is surrounded by the Nuclear Envelope.
-It stores the cell's hereditary material, or DNA, and coordinates the cell's activities, which include growth, intermediary metabolism, protein synthesis, and reproduction, just like the brain which controls or the activities of a higher organism.
