EVERYDAY SCIENCE

Detailed explanation-1: -The zygote grows into a small sporophyte still attached to the parent gametophyte. It will give rise, by meiosis, to the next generation of spores.

Detailed explanation-2: -Zygote develops into a multicellular sporophyte/ embryo. Some cells of the sporophyte undergo meiosis to produce haploid spores.

Detailed explanation-3: -Globally there are around 11, 000 moss species, 7, 000 liverworts and 220 hornworts. As they are not flowering plants, bryophytes reproduce by spores instead of seeds. “They can produce thousands or millions of spores, and they disperse them using the wind as their vector, ” Villarreal says.

Detailed explanation-4: -Solution : In bryophytes the zygote develops into a multicellular, undifferentiated structure called embryo. The embryo develops within venter of archegonium by further segmentation and differentiation finally develops into a full fledged sporophyte callled sporogonium.

Detailed explanation-5: -The mature sporophyte produces spores by a process of cell division called meiosis, or reduction division, in which the chromosome pairs are separated once again to form single sets. The spores are therefore once again haploid and develop into haploid gametophytes.