Answer: a) Basophils
Explanation:
MHC Receptors are the Major Histocompatibility Complex (MHC) are a set of proteins that are essential for the recognition of what molecules belong to the organism, and which ones are foreign. There are 3 classes of MHC receptors. It is an essential component of the acquired immune system.
Answer:
The answer to this question: Satins formed inside the tooth structure from INSIDE sources, would be: intrinsic staining.
Explanation:
When talking about tooth appearance and tooth health, people tend to see stains on teeth and wonder if the problem is a lack of hyginie from the person who has them, or if there might be a different reason. While indeed there are stains that are caused on the tooth due to bad nutritional habits, and bad hyginie, there are others, known as intrinsic staining, that happen due to causes that are beyond a person´s control. Intrinsic staining is defined as the stains that appear on the inside structure of a tooth, they are caused by problems in the formation of the tooth, and they cannot be removed by professionals, or by anything. It is almost like they are part of the tooth itself. Exposure to certain elements, such as antibiotics during teeth formation, can result in intrinsic staining.
Answer:c. enzymatic breakdown of food molecules
Answer:
C. Oxygen and Carbon dioxide
Explanation:
Hemoglobin helps to transport oxygen from lungs to cells and carbon dioxide from cells to lungs. However, it's not the only way to transport these gases.
Each hemoglobin contain four subunits and binds four oxygen molecules and RBC turn into bright red. Carbon dioxide attached to hemoglobin is called as carbaminohemoglobin , this binding is reversible and the carbon disassociates itself from hemoglobin in lungs to escape into the air via alveoli.
