In the classification of fungi, several criteria are utilized to categorize different species. These include:
In contrast, the mode of nutrition is not a primary criterion for the classification of fungi. This is because fungi typically have a consistent mode of nutrition, being heterotrophic organisms that absorb nutrients from external sources. Therefore, the correct answer here is Mode of nutrition.
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 
