Answer:
The answer is B, To ensure that blood flows in one direction.
Explanation:
Your valves are there to prevent backwards blood flow and keep your blood moving all in one direction.
Answer:
D) Potatoes.
Explanation:
The potato is rich in a multitude of micronutrients, especially if consumed with skin. It contains more than 30% of the recommended daily amount of vitamin C, which, in addition to being a potent antioxidant, is important for maintaining the structure of blood vessels. Deficiency of this vitamin is the cause of scurvy.
They can be classified taking into account their harvest time or their species. By their time they can be early, with thin skin and they are roasted and steamed easily as they are more tender; of season, which are larger and serve everything, and late, which are the ones that last the longest, are covered with dirt and are ideal for stews. If we consider their species, we can find them of many kinds: kennebec (Galician or Alavesa), spunta, baraca, sour, bintje or nagore.
They should be checked for Both b. and c.
Yes, a Coronavirus vaccine has been developed. The FDA (Food and Drug Administration) gave the green light to a pharmaceutical company called Pfizer. The vaccine is 94% effective according to the company and it is currently being distributed throughout the Unites States.
Without a professional to help you develop the correct techniques, you will most likely hurt yourself. You may not even get the right results if you don't learn how to properly use the equipment.
