Question

36, Of the following, which are adaptation to fire observe in pones?

Grass stage of some pine seedling

Self-pruning of lower limbs

Thick bark

All of the above

A and B only

Answer 1

Wax covering the pine needles is highly flammable. As pine trees mature they tend to shed the lower branches. Shedding of the lower branches occurs because pine trees like sunlight and the the lower branches being more in the shade tend to shed. This is beneficial to the trees because otherwise these lower branches would act as ready fodder for forest fire to latch on to and spread all over the tree. Thus, self-pruning proves as a beneficial adaption to fire in pines.