Questions

Improve the bracketed part of the sentence.
Scientists (have developed) an “organ-on-a-chip” platform to study how drugs are transported across the human placental barrier.

Which of the following phrases (i), (ii), and (iii) given below each sentence should replace the phrase printed in bold letters to make the sentence grammatically correct? Choose the best option among the five given alternatives that reflect the correct use of phrase in the context of the grammatically correct sentence. If the sentence is correct as it is, mark (E) i.e., "No correction required" as the answer.
The political masters of health care system have not listened to professional health planners because it has not been profitable for them to do so.

i. Has not been profitable for them to do that things.
ii. Has been unprofitable for the professionals to do so.
iii. Has been not profitable for them to do so.

Which among the following metal is used for galvanization?

What chemical is injected into a person's body when an ant bites?

The largest gland of the human body is

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
Chicken-hearted

Which type of city administration controls larger urban area?

Which planet has the maximum number of satellites?