Answer:
A. To store the cell's genetic material
Explanation:
The nucleus stores DNA which is the genetic material.
The Main Organs include: Salivary, glands,Zero esophagus, Sstomach, Small intestine,Large Intestine and Rectum
7. beach sand is made out of feldspar and quartz
Answer:
The hemoglobin in an individual of Denver which lives higher altitude than the Philadelphia will be higher due to the higher elevation atmospheric pressure decreases that causes hemoglobin to nind to the RBCs and that will lowers the oxygen level in the body of the person. To overcome this drawback hemoglobin content is higher in people living at higher elevation.
Answer;
-Non-Rapid eye movement
Explanation;
-Non-rapid eye movement sleep is dreamless sleep. During NREM, the brain waves on the electroencephalographic (EEG) recording are typically slow and of high voltage, the breathing and heart rate are slow and regular, the blood pressure is low, and the sleeper is relatively still.
-NREM-2 occurs after NREM-1, an individual relaxes more fully and has about 20 minutes of NREM-2. It is characterized by its periodic sleep spindles, or bursts of rapid, rhythmic brain-wave activity. About half the night is spent in this phase.
