2881: Robert Webster is known for his work associated with which one of the following ?
(a) Influenza virus
(b) HIV/AIDS
(c) Cardiology
(d) Alzheimer
2882: From the third century AD when the Hun invasion ended the Roman Empire, the Indian merchants relied more and more on the
(a) African trade
(b) West-European trade
(c) South-East Asian trade
(d) Middle-Eastern trade
2883: With reference to the International Monetary and Financial Committee (IMFC), consider the following statements :
1. IMFC discusses matters of concern affecting the global economy, and advises the International Monetary Fund (IMF) on the direction of its work.
2. The World Bank participates as observer in IMFCs meetings.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
2884: Which one of the following organisms is likely to show the highest- concentration of DDT once it has been introduced into the ecosystem ?
(a) Grasshopper
(b) Toad
(c) Snake
(d) Cattle
2885: Which of the following is/are found in plant cells but not in those of animals ?
(a) Plastid & Cellular wall
(b) Chromosome
(c) Mitochondria & Golgi apparatus
(d) Cell wall & lysozyme