Perigee is the correct answer. T<span>his high tide is also known as the proxigean </span>spring tide<span>.</span>
Ductus Arteriosus is a blood vessel normally present in fetuses during development. The blood vessel is designed to bypass the pulmonary artery and brings blood to the Descending Aorta, as the fetus cannot breath through the lung (being as they are fluid filled). This is normally not a problem because oxygenated blood comes from the mother's blood supply.
Patent Ductus Arteriosus, is what happens when that vessel does not close. While not as dangerous as other congenital defects. However, because there is still a bypass, blood that normally need to be oxygenated by going through the pulmonary arteries to the lungs, can be diverted and placed into the blood stream without vital oxygen. This condition may eventually lead to CHF (congestive Heart Failure) and Pulmonary Hypertension if not treated.
List the four types of organic macromolecules. Provide specific molecular examples of each.
The best answer is ATP (Adenosine triphosphate).
Metabolism is a term referring to the overall processes by which energy is obtained by an organism. In man it begins with the digestion process, and ends with cellular respiration.
Food molecules are broken down into their monomer units through the digestive process. Carbohydrates are broken into glucose units. Glucose is taken in by cells and used in cellular respiration to produce ATP, which is the form of energy that cells use.
Cellular respiration involves three stages namely glycolysis , Krebs cycle and electron transport chain. From one molecule of glucose, the number of ATP molecules generated through cellular respiration is 36 to 38 molecules.
