| List I | List II | ||
|---|---|---|---|
| A | Rose | I | Twisted aestivation |
| B | Pea | II | Perigynous flower |
| C | Cotton | III | Drupe |
| D | Mango | IV | Marginal placentation |
To solve the problem of matching List I with List II, we need to understand each term in both lists. Here are the details:
Therefore, the correct matching is A-II, B-IV, C-I, D-III.
| List I | List II | ||
|---|---|---|---|
| A | Robert May | I | Species-Area relationship |
| B | Alexander von Humboldt | II | Long term ecosystem experiment using out door plots |
| C | Paul Ehrlich | III | Global species diversity at about 7 million |
| D | David Tilman | IV | Rivet popper hypothesis |
Three identical heat conducting rods are connected in series as shown in the figure. The rods on the sides have thermal conductivity 2K while that in the middle has thermal conductivity K. The left end of the combination is maintained at temperature 3T and the right end at T. The rods are thermally insulated from outside. In steady state, temperature at the left junction is \(T_1\) and that at the right junction is \(T_2\). The ratio \(T_1 / T_2\) is 
