Questions

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

express a proposition, theory, etc. in clear or definite terms.

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 are antibodies?

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

The clerk asked for my __________.

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: This is the same whether you are at work or in your personal life.
Q: Relationships are easy until there is an emotional turmoil.
R: When you can change the interpretation in your mind of what you think you can change your emotions and shift the emotional quality of your relationships.
S: When you can change the emotions in your relationships you open up entirely new possibilities in your life.

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Clandestine

Blood flow to a tissue will increase if the

When the European Union formed, nations began to

Who is the current FIFA president?