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Human Beings belong to which category of the ecosystem?

While cooking, if the bottom of the vessel is getting blackened on the outside, it means that ______.

In October 2018, India was elected as a member to the United Nations Human Rights Council for a period of

What is the name of a memory buffer used to accommodate a speed differential ?

The number of pupils of a class is 55. The ratio of the number of male pupils to the number of female pupils is 5: 6. The number of female pupils is

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The antigen-antibody immunological reaction is used to be regarded as typical of immunological responses. Antibodies are proteins synthesized by specialized cells called plasma cells, which are formed by lymphocytes (cells from the lymph system) when an antigen, a substance foreign to an organism's body, comes in contact with lymphocytes. Two important manifestations of antigen-antibody immunity are lysis, the rapid physical rupture of antigenic cells and the liberation of their contents into the surrounding medium, and phagocytosis, a process in which antigenic particles are engulfed by and very often digested by macrophages and polymorphs. The process of lysis is executed by a complex and unstable blood constituent known as complement, which will not work unless it is activated by a specific antibody; the process of phagocytosis is greatly facilitated when the particles to be engulfed are coated by a specific antibody directed against them.

One of the two important manifestations of antigen-antibody immunity is lysis while the other is

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Go for a song

In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

With bated breath