HORTICULTURE

Detailed explanation-1: -Answer and Explanation: The sperm of moss produced in the antheridia are flagellated. They use their flagella to swim through water in order to reach the egg in the the female archegonia.

Detailed explanation-2: -Each archegonium holds one egg (in a swollen section called the venter) and the sperm enter through the channel in the narrower, tubular section (or neck). On the side of the venter opposite the neck is the foot which anchors the archegonium to the gametophyte.

Detailed explanation-3: -The most conspicuous stage of moss is the gametophyte: A haploid stage. Male gametophytes produce sperm, which must swim to the female gametophyte. Female gametophytes produce eggs, which are retained in special structures on the female gametophyte.

Detailed explanation-4: -Life cycle of a moss (genus Polytrichum). The sporophyte generation is dependent on the photosynthetic gametophyte for nutrition. Cells within the sporangium of the sporophyte undergo meiosis to produce male and female spores, respectively.