Answer:
The CTL has specific receptors that can recognize infected or damaged cells.
Explanation:
The cytotoxic T cells (CTL) is a type of white blood cells that specifically helps in destroying virus-infected cells (also damaged cells and cancer cells).
This type of cells has a special receptor called T-cells receptors (TCR) which ones recognize specific antigens (molecule that stimulate the immune systems because are “strange” to them). Virus inside a cell could bind to a special molecule called class I MHC, this molecule moves the virus to the surface of the cell where it can be recognized by a CD8+ specific antigen-receptor of the CTL.
Answer:
Spherocytosis (HS) is an inherited disease that affects the red blood cells. Characteristic symptoms of HS are the destruction of red blood cells in the spleen and their removal from the blood stream (hemolytic anemia), a yellow tone to the skin (jaundice), and an enlarged spleen (splenomegaly).
Explanation:
Answer:
There are concrete evidences of chimpanzees in wild part of Tanzania do intake Vernonia amygdalina, which possess anti-parasitic properties and hence helps in treatment of parasitic infestations.
Explanation:
On critical scientific analysis of vernonia amygdalina, it is observed that vernonia contains various lactones and glucosides steroids which showed anti-parasitic property. But the self medication hypothesis is not at all agreeable. Because chimpanzees don't have such brain to judge which things has medicinal values or from which infections or diseases they are suffering. It is perhaps observed that vernonia taste bitter and often animal take bitter food that triggers in them the feeling of satiety or reverse peristalsis to get rid of excess food by vomiting.
In biological<span> taxonomy, </span>race<span> is an informal rank in the taxonomic hierarchy, below the level of subspecies. ... </span>Races <span>may be genetically distinct phenotypic populations of interbreeding individuals within the same species.
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