1. UNIT 4 The reproduction function Natural Science 2. Secondary Education ALTERNATION OF GENERATIONS IN A MOSS

2. Gametophyte Click on each picture to find out more The differents stages of the process Female gamete Male gamete Young sporophyte Sporophyte Spores Young gametophyte Zygote 3 3 2 2 1 1 UNIT 4 Alternation of generations in a moss Natural Science 2. Secondary Education

3. This is the part of the moss that carries out sexual reproduction. It produces male and female gametes. The union of these gametes creates a sporophyte. Gametophyte Male sexual organs Female sexual organs Male gametes, which need water in order to reach the female sexual organs. Female gamete Go back to the Start menu UNIT 4 Alternation of generations in a moss Natural Science 2. Secondary Education

4. The zygote is the result of the union of the male and female gametes. The zygote developes and produces a sporophyte. Zygote Young sporophyte Sporophyte UNIT 4 Alternation of generations in a moss Go back to the Start menu Natural Science 2. Secondary Education

5. This is the part of the moss that carries out asexual reproduction through spores. It always grows on top of the gametophyte. It produces spores which are released, and in the right conditions develop into gametophytes. Sporophyte Spores Young gametophyte Gametophyte UNIT 4 Alternation of generations in a moss Go back to the Start menu Natural Science 2. Secondary Education