The cell membrane separates the intracellular environment from the extracellular environment outside of the cell. A phospholipid is composed of a phosphate group and a lipid. It is composed of a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails.
The structure of the bilayer is such that the tails are shielded from contact with water, creating a selectively-permeable barrier which will be impermeable to most hydrophilic molecules.
So, the answer is A) To maintain balance of water and nutrients in the cell.
The Galapagos Islands would be found in the Pacific Ocean. From the nearest point in the United States, they are about 2,636 miles away.
Answer
Respiratory and circulatory system work close together with alveoli to provide oxygen to cell.
Explanation
Through the process of respiration when oxygen reaches to lungs and then to alveoli. Here oxygen is diffuse to blood through capillaries by the process of partial pressure diffusion. Oxygen combine with hemoglobin present in red blood cells. Now with the help of circulatory system this oxygen is transported to all other parts of the body where needed.
The correct answer would be D.
Answer:
C. meteorology
Explanation:
meteorology is the scientific study of the atmosphere that focuses on weather processes forecasting, and climate.
