Answer:
The situation in Europe is very complicated with the birth rates and death rates, as well as emigration and immigration. In all of the European countries the death rate is bigger than the birth rate, except for Ireland, Albania and Kosovo. The situation with the birth rate is most critical in Western Europe were most of the countries are below 1.6 children per family.
Explanation:
Answer:
Phospholipids are able to form cell membranes because the phosphate group head is hydrophilic (water-loving) while the fatty acid tails are hydrophobic (water-hating). They automatically arrange themselves in a certain pattern in water because of these properties, and form cell membranes.
Explanation:
Answer: A. It moves air into the lungs.
Explanation: The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.
Answer:
I'm not sure but the answer would be 1.2
