Answer:
Girls have menstrual cycles because girls have changes of hormones in their body. The hormones make the lining of the uterus build up. This gets the uterus ready for an egg which when the egg is released it causes a period also known as a menstrual cycle which happens normally every month for at least 3-7 days.
Explanation:
Answer: Calcium
Explanation:
The Vitamin D is an important vitamin and it is related with the element calcium in the body. The Vitamin D is responsible for the absoprtion of calcium in the body present in the food. In the deficiency or depletion of the Vitamin D in the body is likely to affect the calcium levels. The calcium is the main element present in the bones and the teeth. Calcium helps to build bones. In the condition which involves the depletion of Vitamin D levels the calcium levels will also deplete. This will result in conditions like oesteoporosis, rickets and other bone deformities.
Thus people in the northern climates receiving low sunlight, will likely to receive low Vitamin D and will likely to develop bone related problems due to low calcium levels.
The substance that is required for digestion and absorption of vitamin E would be bile. It is a dark green or yellowish brown fluid that is produced by the liver which is primarily used in the digestion of lipids in small intestines. Vitamin E is an antioxidant that is fat-soluble and is important in the protection of the heart , eyes and the prevention of oxidative damage of cells. Most likely, it would be dissolved in lipids for transportation to the parts of the body. As bile affects the digestion of lipids, it would also affect the absorption of fat soluble vitamins and minerals like vitamin E, A, D and K.
Answer:
1. children you only use 2 fingers
2. adult its 30 chest compression to 2 breaths, children its 15 to 2
3.you have to use a different size mask for a child
