Blood type AB is the universal recipient because individuals who have blood type AB does not have the antibodies. They do not have the anti-A or Anti-B antibodies. They can receive all types of blood types: A, B, O, AB.

Correct Option: A

Blood type AB is the universal recipient because individuals who have blood type AB does not have the antibodies. They do not have the anti-A or Anti-B antibodies. They can receive all types of blood types: A, B, O, AB.

The human heart has four chambers, two superior atria and two inferior ventricles. The atria are the receiving chambers and the ventricles are the discharging chambers. The pathway of blood through the human heart consists of a pulmonary circuit and a systemic circuit. Deoxygenated blood flows through the heart in one direction, entering through the superior vena cava into the right atrium and is pumped through the tricuspid valve into the right ventricle before being pumped out through the pulmonary valve to the pulmonary arteries into the lungs. It returns from the lungs through the pulmonary veins to the left atrium where it is pumped through the mitral valve into the left ventricle before leaving through the aortic valve to the aorta.

Correct Option: A

The human heart has four chambers, two superior atria and two inferior ventricles. The atria are the receiving chambers and the ventricles are the discharging chambers. The pathway of blood through the human heart consists of a pulmonary circuit and a systemic circuit. Deoxygenated blood flows through the heart in one direction, entering through the superior vena cava into the right atrium and is pumped through the tricuspid valve into the right ventricle before being pumped out through the pulmonary valve to the pulmonary arteries into the lungs. It returns from the lungs through the pulmonary veins to the left atrium where it is pumped through the mitral valve into the left ventricle before leaving through the aortic valve to the aorta.

Outbreaks by the highly pathogenic H₅N₁ avian influenza (bird flu) virus in poultry have raised concerns about the source of infection and the risk to humans from various exposures. The H₅N_{1 virus is sensitive to heat. Normal temperatures used for cooking (70°C in all parts of the food) will kill the virus. Consumers need to be sure that all parts of the poultry are fully cooked (no pink parts) and that eggs, too, are properly cooked}

Correct Option: B

Outbreaks by the highly pathogenic H₅N₁ avian influenza (bird flu) virus in poultry have raised concerns about the source of infection and the risk to humans from various exposures. The H₅N_{1 virus is sensitive to heat. Normal temperatures used for cooking (70°C in all parts of the food) will kill the virus. Consumers need to be sure that all parts of the poultry are fully cooked (no pink parts) and that eggs, too, are properly cooked}

Vitamin B₁₂ is a “generic descriptor for compounds exhibiting the biologic activity of cyanocobalamin; the antianemia factor of liver extract that contains cobalt, a cyano group, and corrin in a cobamide structure. Vitamin B₁₂ is vital for the formation of red blood cells, as well as for the proper functioning and health of nerve tissue. If left untreated, vitamin B₁₂ deficiency, also known as B₁₂ deficiency, can lead to anemia, as well as nerve and brain damage, which may eventually become irreversible.

Correct Option: D

Vitamin B₁₂ is a “generic descriptor for compounds exhibiting the biologic activity of cyanocobalamin; the antianemia factor of liver extract that contains cobalt, a cyano group, and corrin in a cobamide structure. Vitamin B₁₂ is vital for the formation of red blood cells, as well as for the proper functioning and health of nerve tissue. If left untreated, vitamin B₁₂ deficiency, also known as B₁₂ deficiency, can lead to anemia, as well as nerve and brain damage, which may eventually become irreversible.

Colour-blindness is the inability to distinguish the differences between certain colours. This condition results from an absence of colour-sensitive pigment in the cone cells of the retina, the nerve layer at the back of the eye. A person with colour-blindness has trouble seeing red, green, blue, or mixtures of these colours. The most common type is red-green colourblindness, where red and green are seen as the same colour.

Correct Option: C

Colour-blindness is the inability to distinguish the differences between certain colours. This condition results from an absence of colour-sensitive pigment in the cone cells of the retina, the nerve layer at the back of the eye. A person with colour-blindness has trouble seeing red, green, blue, or mixtures of these colours. The most common type is red-green colourblindness, where red and green are seen as the same colour.