2. Word Box Give the definition of the following words: Fertilization Zygote Meiosis Embryo Mitosis
3. Alternation of Generations It is also known as alternation of phases or metagenesis. This is the cycle of reproduction in which a haploid gametophyte alternates with a diploid sporophyte.
7. Gametophyte (Prothallus) It is the haploid, multicellular phase of plants and algae that undergo alternation of generations, with each of its cells containing only a single set of chromosomes.
8. Sporophyte It is the diploid form of plants that have alternation of generations. It develops from a zygote and produces asexual spores.
9. Rhizoids These are thread-like growths from the base or bottom of a plant, found mainly in lower groups such as algae, fungi, bryophytes and pteridophytes, that functions like roots of higher plants.
10. Antheridium It is a haploid structure or organ producing and containing male gametes called sperm.
11. Archegonium It is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete.
