AP BIOLOGY

Detailed explanation-1: -Woody Perennials: The plants that survive through consecutive growing years with a persistent woody stem (primary or secondary growth) are known as woody perennials. Examples: maple, pine and apple.

Detailed explanation-2: -Asexual reproduction results in plants that are genetically identical to the parent plant, since there is no mixing of male and female gametes, resulting in better survival. The cuttings or buds taken from an adult plant produce progeny that mature faster and are sturdier than a seedling grown from a seed.

Detailed explanation-3: -The fertilized egg, or zygote, contains one set of chromosomes from each of the two sex cells. The zygote then divides, developing into an embryo, which in turn develops the first leaf, root, and stem apex. The resulting plant, the sporophyte, is the characteristic plant that is normally seen.

Detailed explanation-4: -Flowering plants, also called angiosperms, use a sexual mode of reproduction. Reproduction in plants, mainly revolves around the flower, which has both the male and the female gametes. All parts of a flower aid in the process of reproduction, although some of them are sterile.

Detailed explanation-5: -The angiosperm life cycle typically demonstrates the alternation of generations with haploid gametophyte and diploid sporophyte alternation. The sporophyte stage is the primary period of an angiosperm’s life cycle. Angiosperms are heterosporous. This means they produce bigger megaspores and smaller microspores.