The two conditions are: high blood pressure and diabetes. High blood pressures causes damage to the kidneys of the mother and subsequently affect her pregnancy due to increased chances of pre-eclampsia. High blood sugars also affect pregnancy due to abrupt abnormal levels of blood sugars and lack of that can cause birth defects.
Well , the humans have a closed double circulatory system as the blood passes by the heart twice per one cycle and doesn't leave the blood vessels like in insects.
》Pulmonary circulation : Blood is circulated to the lungs where it is oxygenated.
》Systemic circulation : Blood is circulated through all the other parts of the body where it unloads oxygen.
Oxygenated blood coming from the lungs enters the heart through the pulmonary vein which takes blood to the first chamber it meets ; the Left atrium. Left atrium pumps blood to the second chamber , which is left ventricle and during this time , the semi lunar valves are closed to prevent back flow of blood and the bicuspid valve will be open . Now , the left ventricle is filled with oxygenated blood so it will pump this blood to the whole body via the largest artery which is Aorta.
Oxygenated blood will unload oxygen to cells in need of it and will return back now to the heart as deoxygenated . This deoxygenated blood will enter the heart through superior and inferior vena cava which will take the blood to the third chamber , right atrium . Right atrium will pump blood to right ventricle so the semi lunar valves will be closed during this time and the tricuspid will remain open. Now that the fourth chamber is filled with deoxygenated blood , it will pump this blood through pulmonary artery when the semi lunar valves opens , to the lungs again to be oxygenated once more.
Notice that you have to know exactly the position of the valves that I have mentioned in the heart so that you could understand the blood flow better. You can refer to any heart labelled diagrams in your textbook or the internet.
Answer:
Satellite images
Explanation:
Gets the footage from above as well as providing different angles.
Scientists can be affected in society through different perspectives because since science is a modern and changing subject. The findings of one scientist may not be supported by others. Scientists may perform the same experiments or studies but still be met with different results and come up with different conclusions. For ex: When Galileo Galilei discovered that the Earth was round he told other astronomers yet no one agreed with him since they believed that the Earth was flat due to their own research.