Explanation:
Innate immune cells (e.g., dendritic cells and natural killer cells) are the first line of defence which HIV encounters upon entry to the body.
Macrophages. Tissue macrophages are one of the target cells for HIV. ...
Dendritic cells (DCs). ...
Natural killer (NK) cells. ...
Cellular immune response to HIV. ...
Humoral response to HIV.
When two lions compete for the same habitat, shelter, and food
Answer: <u>B. They signal phagocytes
</u>
Explanation: Complement proteins are a part of immune system of the body. These are plasma proteins which help in the process of marking and killing the pathogens. These are not involved in the fever causing mechanism, so option D is incorrect. Also, these are not carrier proteins, and are not associated with hormones, thus option C is also incorrect. Since these proteins bind with the pathogens and make them easily recognized by the phagocytes, option B is the right answer.
<span>hydrocyanic acid is the correct answer</span>
Secretion of glucagon from the pancreas results in break down of glycogen, which causes an increase in blood glucose levels. Glucagon is a hormone that is produced by alpha cells in a part of the pancreas known as the islets of Langerhans. It is released in response to low blood glucose levels and to events where the body needs additional glucose, such as in response to vigorous exercise. It stimulates break down of glycogen, activates gluconeogenesis (the conversion of amino aids to glucose) and break down of stored fats into fatty acids. This results to high blood glucose levels.
