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Which of the following statements are true about the veins in the human circulatory system? I. All veins carry carbon dioxide-rich blood. II. The walls of the veins are thin. III. Veins carry blood from various organs to the heart.
Which of the following statements are true about veins in the human circulatory system? A. All veins carry carbon dioxide-rich blood. B. Veins have thin walls. C. Veins carry blood from different organs to the heart.
Consider the following statements about the Open and Closed Blood Circulatory System:   A) Open blood circulatory system does not contain special blood vessels to carry oxygenated and deoxygenated blood, while in the closed blood circulatory system blood vessels are present. B) Oxygenated and Deoxygenated blood gets mixed in the closed blood circulatory system, while oxygenated and deoxygenated blood does not get mixed in the open blood circulatory system. Choose the correct statement.
In the question two statements are given, followed by two conclusions, I and II. Read all the conclusions and then decide which of the given conclusions logically follow/s from the given statements. Statements: All white blood cells are red blood cells. Some blood cells are red blood cells. Conclusions: I. All blood cells are red blood cells, is a possibility. II. Some red blood cells are not blood cells.
Consider the following statement regarding Deep vein thrombosis. 1. Deep vein thrombosis (DVT) is a situation which occurs when a blood clot called a thrombus, forms in one or more of the deep veins in the body, usually in legs. 2. It can cause leg pain, swelling and sometimes with no symptoms. Which of the statement given above is/are correct?
Study the following statements about the human excretory system. I. The waste materials dissolved in water are separated in the kidney as urine. II. Urine is stored in the bladder. It is passed out through the urethra, the other end of which is attached to the urinary aperture. III. Urine passes into the bladder through the urinary ducts. IV. Useful substances are reabsorbed into the blood. V. Blood containing both useful and harmful substances reaches the kidneys for filtration. The correct sequence of processes given in the above statements is:
Compared to hepatic bile , gall bladder bile contains a reduced concentration of which of the following?
Under the ABO method, a person with an unknown blood group loses a lot of blood in a road accident and needs an immediate blood transfusion. A friend of his, who has a valid certificate of his blood group, requests for blood donation without any delay. The blood group of the blood donor is:
In a blood donation camp, 100 people donated blood. 37 of them had blood group ’A’, 31 had blood group ‘B’, 14 had blood group ‘O’ and rest had blood group ‘AB’. If a sample is chosen at random, what is the probability that the sample contains blood of group ‘AB’?
In the following question, the first and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/passage is split into four parts and named P, Q, R, S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. S1. Blood donation refers to a practice where people donate their blood to people so it helps them with their health problems. P. It is also a sign of humanity that unites people irrespective of caste, creed, religion, and more. Q. If the body loses blood in excessive amounts, people to get deadly diseases and even die.  R. Blood is one of the most essential fluids of our body that helps in the smooth functioning of our body. S. Thus, we see how blood donation is literally life-saving which helps people. S6. To raise awareness about this life-saving procedure, the world observes 14th June as Blood Donor Day.