Exams

What is the value of (-7776)25

The pie chart shows tickets sold (in 1000s) per month by 6 different airlines (A, B, C, D, E, F). Study the diagram and answer the following questions.

Which airline sold the second highest number of tickets?

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

Once and for all

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.

Phagocytosis is a process in which antigenic particles are _____ by and very often digested by macrophages and polymorphs.

The expression 52n –23n has a factor?

Which is a difference between proteins and carbohydrates and fats?

Singing Their Songs was created by

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

To keep the wolf from the door