Answer:
They are stimulated by an antigen.
Explanation:
Natural killer cells are cytotoxic cells that help our body in innate immune response. These are an critical and important component of the innate immune system of our body. These natural killer cells provide a rapid response towards the virus infected cells. These cells have capability to detect MHC that are present on the infected cells. Natural killer cells do not require activation for killing those cells which are missing MHC I. Due to this feature, they are named as the Natural killer cells. These cells can directly induce the death of tumor cells and play an important role in immunosurveillance.
Answer:
It is called the Blade
Explanation:
The blade is the broad part of a leaf that holds the green food making cells.
Answer:
Meiosis is important for organisms that reproduce sexually because it is the cell division that serves to obtain gametes or sex cells.
Explanation:
Meiosis is a reductive cell division, involved in the gametogenesis process, where from a diploid cell haploid cells called gametes are obtained.
The gametes, also called sex cells, are responsible for containing the genetic information that each individual will transfer to their offspring.
In sexual reproduction, the importance of gametes is that the paternal and maternal gametes unite in a process called fertilization, to give rise to a diploid cell called a zygote.
Answer:
7ph
Explanation:
7PH Stainless Steel is a semi-austenitic precipitation hardening steel with high levels of Chromium and Nickel. ... Thanks to its exceptional mechanical properties, this steel is often used in aerospace applications. It is also used for manufacturing of flat springs, conical springs, washers, eyelets, and strain gauges.
