Group the seeds given in Figure12.3 (i) to (iii) according to their means of dispersion.

(a) Seed dispersed by wind

(b) Seed dispersed by water

(c) Seed dispersed by animal

(a) Seed dispersed by wind – (i) Maple seed, (ii) seed of madar

(b) Seed dispersed by water – given seeds do not support seed dispersal by water

(c) Seed dispersed by animal – (iii) Xanthium

Seeds of maple and madar have wing-like structure and hence are dispersed by wind.

Xanthium is a spiny seed with hooks which sticks or gets attached to bodies of animals. Hence it is dispersed by animals.