Through the course of evolution, plants have developed smaller gametophytes and larger sporophytes. study the list of plants. then, place them in order, from the one with the briefest gametophyte stage to the one with the longest gametophyte stage. green algae ferns mosses seed plants

Ans.

Gametophyte shows haploid, gamete-forming stage of plant's life cycle, while sporophyte shows diploid, spore-forming stage of plant's life cycle. In green algae, gametophytes and sporophytes are isomorphic (indistinguishable). In bryophytes, such as mosses, gametophyte shows dominant stage as it is most visible stage in their life-cycle. In vascular plants, such as ferns and seed plants, sporophytes show dominant stage.  

Thus, 'seed plants show briefest gametophyte stage' and 'mosses show longest gametophyte stage.'

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects