Questions

Which structure is specific to eukaryotic cells?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

With a blood test, a physician was able to ___________ the woman's pregnancy.

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

the way in which a substance holds together; thickness or viscosity

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

My sister said to my mother, "When can I have dinner? I hardly have had anything to eat since noon today."

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

Crescendo

In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it.

INVINCIBLE

Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.

To avoid the various foolish opinions to which mankind are prone, no superhuman brain is required. A few simple rules will keep you free, not from all errors, but from silly errors. If the matter is one that can be settled by observation, make the observation yourself. Aristotle could have avoided the mistake of thinking that women have fewer teeth than men, by the simple device of asking Mrs. Aristotle to keep her mouth open while he counted. Thinking that you know when in fact you do not is a bad mistake, to which we are all prone. I believe myself that hedgehogs eat black beetles, because I have been told that they do; but if I were writing a book on the habits of hedgehogs, I should not commit myself until I had seen one enjoying this diet. Aristotle, however, was less cautious. Ancient and medieval writers knew all about unicorns and salamanders; not one of them thought it necessary to avoid dogmatic statements about them because he had never seen one of them.

The author portrays mankind as

In ∆ABC, ∠A = 90°, AD ⊥ BC and AD = BD = 2 cm. The length of CD is