The correct answer is 1
Sleep is divided into several phases, each of which has a specific physiological stage. The five stages of sleep form the cycle, lasting about 90 minutes each. In this way, a sleep cycle is repeated four to five times a night.
Basically, we can divide sleep into two phases: REM (Fast Eye Movement) and NREM (Non-Fast Eye Movement). The state of NREM corresponds to 75% of the sleep period, and is divided into four phases.
Answer:Some streets have a center lane marked as a two-way left-turn lane. Only enter this lane when preparing to slow down or stop before making a left turn from the main roadway.
Explanation:
Answer:
The colonists learned early to defy the authority of the English government. ... From the West Indies, molasses and sugar are sent to the 13 colonies. From the 13 colonies, raw iron and rum are shipped to Africa. These are traded for more slaves, and the process starts over again.
Explanation:
habituationHabituation is a mental learning process in infants wherein repeated exposure to a stimulus results in a decreased response to it. In this example, after Melanie presented the infants with the same red light repeatedly, they became "habituated" or familiar with it, after which they lost interest in observing it. Melanie then proceeds to investigate if the infants instead turn their attention to a different colored light (a new stimulus).
Answer:
Explanation:
The military strategy of the north was fourfold:to blockade southern ports to cut off supplies from Europe, to break the confederacy in two at the Mississippi River, to destroy the transportation and communication systems of the confederacy thus crippling morale and to attack the confederate capital at Richmond.
By 1863, however, the Northern military plan consisted of five major goals:
Fully blockade all Southern coasts.
Control the Mississippi River.
Capture Richmond.
Shatter Southern civilian morale by capturing and destroying Atlanta, Savannah, and the heart of Southern secession, South Carolina.
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