3176: According to ancient Indian cosmogonic ideas the sequential order of the cycle of four aeons (Yugas) is
(a) Dvapara, Krita, Treta and Kali
(b) Krita, Dvapara, Treta and Kali
(c) Krita, Treta, Dvapara and Kali
(d) Treta, Dvapara, Kali and Krita
3177: Which one of the following statements does not apply to the system of Subsidiary Alliance introduced by Lord Wellesley?
(a) To maintain a large standing army at other's expense
(b) To keep India safe from Napoleonic danger
(c) To secure a fixed income for the Company
(d) To establish British paramountcy over the Indian States
3178: With reference to the latest developments in stem cell research, consider the following statements:
1. The only source of human stem cells are the embryos at blastocyst stage
2. The stem cells can be derived a without causing destruction to blastocysts
3. The stem cells can regenerate themselves in vitro virtually forever
4. Indian research centres also created a few cell lines which can be developed into many types of tissues
Which of these statements are correct?
(a) 1, 2, 3 and 4
(b) 1, 2 and 3
(c) 1, 2 and 4
(d) 3 and 4
3179: Within biological communities, some species are important in determining the ability of a large number of other species to persist in the community. Such species are called
(a) Keystone species
(b) Allopatric species
(c) Sympatric species
(d) Threatened species
3180: What is the correct order of happenings of the following three events in the British rule in India?
I. Rowlatt Act
II. Hunter Report
III. Jallianwallah Bagh Tragedy
(a) I, II, III
(b) II, I, III
(c) III, II, I
(d) II, III, I