The renal arteries normally arise off the side of the abdominal aorta, immediately below the superior mesenteric artery, and supply the kidneys with blood. Each is directed across the the diaphragm, so as to form nearly a right angle with the aorta.

Correct Option: A

The renal arteries normally arise off the side of the abdominal aorta, immediately below the superior mesenteric artery, and supply the kidneys with blood. Each is directed across the the diaphragm, so as to form nearly a right angle with the aorta.

Haemophilia is a group of hereditary genetic disorders that impair the body's ability to control blood clotting or coagulation, which is used to stop bleeding when a blood vessel is broken. Haemophilia A (clotting factor VIII deficiency) is the most common form of the disorder, present in about 1 in 5,000–10,000 male births.

Correct Option: C

Haemophilia is a group of hereditary genetic disorders that impair the body's ability to control blood clotting or coagulation, which is used to stop bleeding when a blood vessel is broken. Haemophilia A (clotting factor VIII deficiency) is the most common form of the disorder, present in about 1 in 5,000–10,000 male births.

DPT refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. The vaccine components include diphtheria and tetanus toxoids, and killed whole cells of the organism that causes pertussis.

Correct Option: D

DPT refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. The vaccine components include diphtheria and tetanus toxoids, and killed whole cells of the organism that causes pertussis.

There are two major facets of the clotting mechanism – the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated.

Correct Option: A

There are two major facets of the clotting mechanism – the platelets, and the thrombin system. The thrombin system consists of several blood proteins that, when bleeding occurs, become activated.

Adipose tissue is also known as body fat. It contains several cell types, with the highest percentage of cells being adipocytes, which contain fat droplets. Its main function is to be a reserve of lipids, which can be burned to meet the energy needs of the body and to protect us from excess glucose by storing triglycerides produced by the liver from sugars.

Correct Option: B

Adipose tissue is also known as body fat. It contains several cell types, with the highest percentage of cells being adipocytes, which contain fat droplets. Its main function is to be a reserve of lipids, which can be burned to meet the energy needs of the body and to protect us from excess glucose by storing triglycerides produced by the liver from sugars.