Answer:
Phosphates are critical part of life because of the diverse roles they perform in the lives of living organisms, especially in DNA and RNA molecules.
Phosphates are formed from two elements, phosphorus and oxygen. Phosphorus is a very important element that play a crucial roles in the formation of bones and teeth. It is also plays vital roles in carbohydrate metabolism, fat metabolism, protein synthesis and repair of worn out tissues. Oxygen on the other hand is required for oxidation of biological fuel and for breathing.
Phosphates are usually formed from one atom of phosphorus and four atoms of oxygen, it has the chemical formula PO4. Phosphate is an important component of DNA and RNA molecules, phosphates hold these molecules together. Phosphate molecule is also found in ATP, which is the energy currency of living cells.
Answer:
takes in carbon dioxide, puts out oxygen
Explanation:
Answer:
Explanation:
Gas exchange occurs at the alveoli in the lungs and takes place by diffusion. The alveoli are surrounded by capillaries so oxygen and carbon dioxide diffuse between the air in the alveoli and the blood in the capillaries.
B. Crab
is your answer
An crab has an exoskeleton
hope this helps
