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An estuary  is a place where 

Male is the Capital of ___________.

Whose part is the International Bureau of Education

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.

What happens when an antigen comes in contact with lymphocytes?

Isotopes are atoms of the same element that have different

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select theappropriate option. If a sentence is free from error, select 'No Error'.

Money bills could only be introduced in the Lok Sabha, (1)/ and upon being passed, are sent to the Rajya Sabha, (2)/ where it can be deliberated upon forupto 14 days. (3)/ No error (4)

The fluid mosaic model describes the structure of

The renal medulla is composed of tissue called